I’ve experienced delays like this in the past paying with BTC, but contacting support worked in the end. You could also just try waiting until their system processes your order. Bitmain’s support isn’t the greatest, but they should get the problem solved.

If your tx doesn’t have enough confirmations, then it’s not on their end and waiting should fix it.

There aren’t official retailers for any major crypto miner manufacturers except Canaan IIRC, who has several official retailers, but it’s okay to purchase via a third party as long as the service has robust customer protection (I.e eBay), and if they don’t only accept non reversible payment methods (bank transfer or crypto payment). The latter is a sign of a scam if the site you’re using isn’t reputable.

The title doesn't make sense to me- are you talking about mining on a PC or Android mobile device?

VPSes typically aren't too economical to use for mining crypto, even CPU-based coins, and Android mobile devices are typically made to be low-power and don't perform too well mining. Most mobile devices also have horrible heat dissipation, so you're likely going to cause thermal throttling on your device if you try to mine on it, and damage is possible in the long-term.

TL;DR don't mine with either a VPS or mobile device.

Yup, I was also pretty shocked by how high the transaction volume for Nigeria was according to the data you gathered. I've always known that there was a medium-sized crypto community in Australia and volume there must've been pretty high, but I seldom hear from Nigeria about cryptocurrency, and the national volume is much higher than that of Australia. Not too surprised that the US was high up on volume, though.

 I'd also like to know what your sources were, and how you obtained the data, as these numbers are meaningless if we don't know how you got them.

Anonymity's a big reason why people use crypto in the first place, and it's also why regulation is happening to such a large extent in crypto (KYC being a big example like kryptqnick said), but it's also a good marketing point for crypto-based services. I feel there'll always be decentralized and anonymous exchanges and casinos around in crypto, but the numbers of such services may decrease in the future due to government pressure, etc.

I feel the blockchain will and has changed gambling, especially online gambling, but the change isn't so significant in some ways compared to traditional online gambling or physical gambling. It's indeed nice and also good for crypto as a whole that there are casinos that accept crypto, though, as this helps adoption out quite a bit.

For those who are unaware, this site sells credit card details and file dumps of credit cards. Credit card fraud is illegal in the United States and most municipalities.

Makes sense that the whois is hidden considering the subject of sales here. The site is a scam according to a post on this forum.

I don't see how this can be more risky than gambling when it's essentially just an alternative form of gambing. The fact that this particular site doesn't disclose where their price calculations are based from worries me, however, and the site overall seems a bit cluttered with buttons, though I've noticed most of the buttons available are just indicators and such. I also don't know whether or not verification is necessary for deposits, and what minimum gambled amount is required to withdraw the bonus on the site. I don't typically gamble with bonuses, but it's odd they don't state what sort of multiplier they use for bonus withdrawal.

I'm not going to buy any of these machines- numbers aren't that impressive, and profitability at this moment isn't exactly conducive for this thing to break even, much less make you profit within a year. As others have said, the profitability at this point in time seems pretty high, but difficulty corrections once everyone gets their hands on these miners will drop profitability down quite a bit.

Everyone's going to get the miner at the same time, including retailers, and it just doesn't add up that this new miner selling site happens to have these units in stock. Additionally, they only accept non-reversible payment methods (bank transfer or crypto), so you have no chance of getting your money back if this site just takes your money, and there's already a thread against the site here. The account that made this post is also brand-new, so there's a high chance that this account was made for the sole purpose of promoting this most likely scam site.

You can also just convert your BTC to PayPal through a reputable member here, though there is risk in PayPal transactions and they can always be reverted up to 180 days from the period of transfer. This hasn’t happened to me yet, but if you’re in quick need of funds for eBay and you already have a PayPal account that can be used on eBay, this is a quick solution.

It also seems suspicious to me that you can’t calculate shipping on the site (or I’m just not logged in); mot sites allow you to calculate shipping and allow you to see the total with shipping factored in, but this site just gives you the total with nothing else added in. The grammar on the site is also extremely poor (worse than some legitimate sites that aren’t perfect, like eastshore), and I wouldn’t give the site a penny of my money.

I don't think most bounty campaigns (altcoin-based signature campaigns,etc) are worth it at this point in time, as rewards are relatively low and coin prices usually fall below initial sale prices, but if you're willing to take a gamble in a bounty campaign in exchange for possibly working for pennies an hour, then go for it. I used to participate in some bounty campaigns, but most ended up badly and I haven't touched any bounty campaigns for a while now. Signature campaigns are very low-risk, but if you're starting out as a newbie, you'll need to have some knowledge of crypto and contribute quality material to be able to rank up, which can admittedly be a bit difficult the way things are right now.

I personally invest into crypto casinos every now and then, and I’ve found that there’s relatively low risk for a good reward by doing so. It’s not risk free, of course, but you can’t lose a large amount of your investment unless you’ve got high leverage in your investment or the casino you’re investing in isn’t reputable and runs off with your money. You won’t be making massive money, but you’ll get a good stream of income from investing in a casino most of the time- just don’t invest more than you can afford to lose, and you’ll be alright.

The disappearance of most pickers might be attributed to low numbers of people willing to pay for picks, or the pickers that posted for free just lost motivation to continue- I too remember there were many pickers around this time last year, but I saw them slowly trickle away over the last year. As someone has already said, picks are usually posted in this subforum. You’ll likely stumble across one after going a few pages into this subforum.

It’s gotten less profitable for me to the point that I’m scrapping a lot of rigs and selling them for parts and just investing my money that I used to have saved for buying more rig parts into just buying coins or investing them elsewhere, like in crypto casinos or to exchanges. Most of my rigs aren’t making much anymore, and it’s not even worth my time to run them for the few dollars a month I earn per card. With coin prices as low as they are now, it isn’t a bad time to just buy and hold.

Coming back to this topic, bitlaunch seems to be a reputable hoster that also allows you to pay for cloud providers like Linode, Vultr or DigitalOcean through crypto. I haven’t personally tried them, but there doesn’t seem to be a lot of negative information against the service, and DigitalOcean is relatively lenient about what you do with their VPSes as long as you’re not crypto mining.

Edited for autocorrect due to my iOS device being a bit annoying.

I use the the Bluestacks emulator to launch Android games on my desktop computer, and it works pretty well with my PC. I've read and watched several videos on Android emulation on Windows, and most of them say that Bluestacks is indeed a good option. Click here to go to Bluestacks' main site. The main page states that the emulator is 6x faster than the Galaxy S9+, but this depends on the performance of your PC, of course, but the emulator is faster than others I have used in the past.

Investments in crypto casinos are usually pretty profitable, as long as you're not excessively using leverage and you're investing reasonable amounts of money that you can afford to lose, but I've never had much luck with referrals as I haven't ever found a good place to advertise my referral links. I know some people do make decent amounts of money from refs, but I've always been good with investments, especially with newer casinos. There are even threads around here detailing how some people have made money from investing in casinos and the weekly/monthly performance of their investments.

If you believe in crypto, you can also just buy and hold crypto instead of mining. You won't have a break-even period this way in the same way that mining does, and there's initially less risk as it takes time (quite a bit of it) to break even right now, even with cheap electricity. Mining hasn't been very profitable for the last few months, and I've shifted from mining to just buying and holding coins, and doing so has actually netted me a profit whereas I would still not have broken even with GPUs.

Additionally, why is this for Fermi cards only? I hardly know anyone using 400/500-series cards anymore for any application at all, much less for mining, and the entire series of cards wasn't extremely power-efficient in the first place. What's already been said about this application being dubious is also true- there have been cases of no-devfee miners containing hidden RATs (remote access trojans) and other viruses inside, and OP doesn't exactly have high trust at this point in time.

I typically bet with option one, betting against the operator with fixed odds. I don't like waiting for the odds to be good for my chosen team, and in I usually see odds swing drastically in mutual betting, which is a big reason why I don't like mutual betting- the uncertainty on top of the risk of betting already makes it a not-so-pleasant experience for me. I've never had a good experience with mutual betting, though I haven't bet a lot mutually in the past.