Blockchain wallet is secure to a certain extent. Even though it has been proven that the private keys aren't stored on the server unprotected, this only prevents your wallets from outsiders attacks. They can still modify the code to capture your wallet password without your permission. For example, a vulnerability happened a few months ago which affected the RNGs of the wallets and thus generated unsecured private keys. The best client is still an open sourced desktop client.

The android security vulnerability happened a long time ago. It was due to a design flaw that directly affected the randomness of transaction ID, not the private key. Android is still secure enough for daily usage since they have fixed it and this could have happened to any client.
I agree to that. However, you can also use a offline computer like a raspberry pi and install electrum in it. You can transfer info from an online computer to the offline one and sign the transaction there then broadcast it on the online computer. The best part is, it cost much less than a trezor wallet.

Low electrical rates and taxation doesn't directly assures profit. Mining are usually much less profitable than purchasing Bitcoins since the possibility of hardware failure, sudden difficulty increase is high. RMAing a machine is pretty costly since you have to pay for the postage and the repair may take up to several weeks. The time will decrease the profitability. If a manufacturer decides to release hundreds of hardware suddenly, the difficulty can potentially increase by a magnitude. The cost of hardware is also quite an important factor in profitability too!

Owning a faucet is pretty much like owning a casino. The profits is largely based on the quality of visitors visiting your website. For example, impressions from certain countries have much lower rate. Some advertisers may also be looking at your visitor's time spent on page. There are a lot of faucets on the web right now. To stay competitive, your faucet should have new features and higher payouts. All of these requires funds and needless to say you have to pay for web hosting. Most newbies would be interested in posting in the forum for more amount of money.

It depends on the demand. The truth is, most people just want to join a high paying signature campaign or just to look good. You can have several accounts and hero members can be farmed fairly easily. Most hero members has spammy posts thus the price would be lower. There are little difference in signature campaign's pay for hero member and sr member so I presume most would purchase Sr members.

You can't really transfer 60GB per day without having to connect to thousands of nodes and uploading loads of data. For every computer, there should be at least one fan, case fan, CPU fan, PSU fan or GPU fan without them, it would be fried long ago. Do you have any realistic data to prove your point?

SSD are still relatively more expensive than normal magnetic hard drives. A HDD consist of a platter and a spinning head. It can be much more slower than SSD which consist of only chips. Those chips are much faster than spinning drives hence the speed.

Potential activity= the amount of activity accumulated after several active 2 weeks period. For a 2 week period to be considered as active, 1 post is needed. Hence, only a few is required to accumulate a lot of unredeemed activity points. If you look closely at those accounts, the post are spaced average 2 weeks apart.

Less risk on the providers but more risk on users. The owner can easily run away with the gears. It is worth noting that maintenance fees are high and land space. If one is truly interested in mining for profit, they would probably have purchased their own space. Maintenance fees alone should be enough to cut the money saved on electrical fees.

Just to add on to this. Once you register, 14 activity is available to be claimed. You would still need to wait <1 month to become Jr member since the activity required is 30. Other than that, activity doesn't start when you register. It has a time schedule, more info: https://bitcointalk.org/index.php?topic=582736.0. I was lucky to register a few days before activity increase so I didn't need to wait too much. There is still a limit even at Full member but rank higher than Jr member should have negligible limits, based on an estimation of time required to construct constructive posts.

Memory can be increased by using swap but it would just cause extra load on the SDcard and it isn't as fast as the on-board memory. I/O speeds isn't a huge issue after going through initial synchronization. Read and write speeds isn't as important as potential bottlenecks in your internet.
Considering the hard disk price is getting cheaper, that isn't much of an excuse. Most modern computers could easily have 1TB of HDD since they are fairly cheap. However, the network would need more high speed diversed nodes than low uptime nodes.

Half correct. Bitcoin core pregenerates 100 address for use when the user clicks to get new address. After 100 address, a new set of addresses would be created. [Correction: After each key is generated by user and user interacts with the wallet.dat, the wallet pregenerates one more key to maintain 100 key in keypool. (Thanks shorena for correcting!)] You would then have to rebackup it. HD wallets eliminates this limitation.

Data from hard disk failures can be restored but they certainly don't have 100%. My advice is that you can bring it for a quote and if it's too expensive or impossible to recover, consider it as an expensive lesson.

Mind saying the pools name? I guess most of the pools allow transactions with no fees to be inside the blocks. It's pretty much all about priority between transactions. You would have higher priority if you have higher coin age, fees and lower transaction size. But well, of course, the miners have the last say.

Other than it being non reversible, it is also pseudonymous. One can easily create an account to scam people and vanish into the thin air and the authorities will not bother with them at all. For banks, some of them allows transactions to be disputed. Without proof, the buyer will always win.

It's is very hard to not spam if you aren't knowledgeable about something. Since this is a Bitcoin forum, newbies probably won't have much knowledge hence, not a good choice. One or two spam posts with signature campaign can easily result in a ban. The best bet is to offer service at the service section.

Gambling? Don't try. It is very risky. Once you start you probably can't stop. Eg. Just look at my address. But still, it was fun to gamble what I could afford to lose.

Repayment sent! TXID: https://blockchain.info/tx/035bccb0eba8304560e48a304fcb0b5454206329fbba841ab83ca084fdf78aa5

Found a interesting post right here:https://m.reddit.com/r/Bitcoin/comments/2yyb3u/how_to_run_a_full_bitcoin_node_on_a_raspberry_pi_2/. Do note that SD cards does not have great lifespan under heavy load. Your best bet would be to get a old hard disk and run it there. If you want, you can also purchase a new SSD/HDD and they can still be repurposed to be used as computer hard disk if you want in the near future. Statistics has shown that typical lifespan of HDD would be more than 4 years.

Since most of the coins are mined using various addresses that aren't affiliated with one another, there would be no way to prove that they belong to satoshi or others. There were no evidence that satoshi stopped mining right after 2009 and he could have mined throughout the years using other addresses. Satoshi has also made a transaction to hal finney so the addresses were not all untouched.

BTC-e requires verification only if you are depositing from a bank account. If the exchange is reputable, you would most probably have to verify your account at some point of time. Localbitcoins is the only way to be truly anonymous to get Bitcoins via bank deposits.

IIRC, robocoin requires confirmations before allowing the user to cash it out. If the confirmation is fast, then it would be ready for cashing out instantly, if it's not, I'm afraid it would take sometime. But overall, robocoin is pretty smooth in cashing out and buying Bitcoins.