The most neglected aspect of the discussion is usually moore's law and the number of transistors on an area doubling roughly every 2 years. As transistor density of GPUs and ASICs increases, performance per watt rises dramatically. Leading to a double whammy where not only do new GPUs and ASICs perform better. They also consume less electricity.

It would be nice if there was a second use for old ASIC chips and/or GPU cards, but most of these cards and chips has been pushed to it's end, so the market for these cards would be small. 

I have bought GPU cards from some Alt coin miners that has gone bust a few years ago and I made a good profit selling them to gamers, because there was a high demand for gaming cards and the supply was too low. Things has changed since then and the demand for the cards from the Alt coin mining has declined and the manufacturers has increased the supply, so the second hand market was destroyed. 

I dont understand why you left CPU mining out. CPUs are everywhere. And there will be many many more in the near future. They will have to be active and to be sure they are active is best to do something. Mining is perfect thing for them to do. Much better then just some useless test.

Just to expand on this a little:

BISQ isn't a financial organization. It isn't even an organization in the way you would usually think of one. It is what is known as a DAO - a decentralized autonomous organization. It is essentially a decentralized mechanism for developing and maintaining the BISQ platform. People involved in BISQ - developers, contributors, designers, mediators, arbitrators, buyers, sellers, traders, etc. - can propose changes to the platform and vote on said proposals. There is no registered company, offices, CEO, managing director, etc. It doesn't need to buy a license because it's not a company and, much like bitcoin, a government can't enforce any laws upon it. A government could kick and scream and even declare it illegal, but they can't shut it down like they can with a centralized exchange.

There's some more good information about this here:
https://docs.bisq.network/intro.html
https://docs.bisq.network/user-dao-intro.html

First of all, both buyer and seller must pay a security deposit prior to trading, which are refunded after the trade. In the case of someone trying to scam, they will lose their deposit, which acts as an incentive to be honest.

It's a good question. The majority of the replies above are referring to Coinbase or other centralized exchanges and therefore don't answer your question.

As darosior points out, most P2P exchanges will not accept credit cards since they allow very easy chargebacks, and most customers do not have the facilities or services set up to accept credit card payments. Most also won't accept payments from services like Paypal, which also allow easy chargebacks. Many will, however, allow bank transfers and other services in which chargebacks are possible, but with some limitations.

BISQ, as mentioned above, is my current P2P exchange of choice. You can read how they deal with this problem here: https://bisq.network/faq/#chargeback-details. Essentially it comes down to only allowing small trades through these methods, and requiring accounts which use these methods to be older, established accounts, and requiring "signing" before using these methods (which essentially means the account is verified by a trusted trader first - https://docs.bisq.network/payment-methods#account-signing). This set up essentially means anyone with a stolen bank account is going to have to wait several months and make a number of other trades first, just to be able to cash out a thousand or so dollars via BISQ. There are far less time consuming ways to cash out a lot more money from a stolen bank account, with less chance of being caught in the meantime. This means, as far as I know, BISQ have never had a chargeback via a bank transfer before.

Having said that, although those security measures are good, the bottom line is that you are responsible for your own security. There are plenty of payments options which don't allow chargebacks. If you have any doubts about a specific trader, then insist on a non-chargeback option or trade with a different user.

Step 1: Traders will register on p2p exchange.
Step 2: A buyer/seller places a buy/sell order.
Step 3: The matching engine works and matches the buyer with the right seller.
Step 4: If the buyer and seller agree and confirm to the terms of trade, then P2P exchange holds crypto assets of sellers to be sold.
Step 5: Buyer makes the payment for his/her purchase of crypto assets to the seller.
Step 6: After the payment confirmation by the seller, smart contract releases crypto assets to the buyer's wallet address.

Didn't you know that 14 million km² of ice is an incredible source of energy?!

It also has excellent transport links with Chile and Argentina—two of the largest sources of Bitcoin mining equipment. /s

just think of brands like google
.. what is a 'google'
the brand name has no plain meaning to the word or any distinctive origins

apple.. a tech company named after a fruit.. no explanation

just try a new brand thats more catchy and not so related to its end-purpose

i have heard some weird and wacky idea's in the past.
so if it was a mining related thing. someone jokingly said 'clinker' because of the clinking sound a pickaxe makes when hitting ore

just think how 'clinker.io' might be less boring but more catchy than 'mining.io'

try to be more innovative and elaborate to your idea's of a brand, because sometimes a double meaning, hidden secret, subtle joke brand name sticks in the mind of someone far more than just a standard obvious name

ive heard elon musk is calling his hole drilling company 'boring'

Just next Hive OS copy-paste 

If the name already was burned by a scammer then is a really bad idea to take that name. Because lot of people will avoid the project just because that name under another project means scam.

Get a clean name without a negative behavior, that's the wise way to do it. Start your reputation from zero and build something clean and positive.

It could be questionable area legally for trademark purposes if they do continue operating under that brand. They could be relaunching a new website you never know. You can see when the domain expires and possible register it/dropcatch it. Or try contacting the whois email and make an offer.

I don't usually recommend building online business on a non .com but IO is popular for startups. In the end almost all successful IO companies usually buy the .com. And it would be a shame to never end up with the .com

We have some mining domains for sale you may be interested in. CoinHasher.com is one in particular, PM me for full list.