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https://www.quora.com/Is-anyone-making-money-in-bitcoin-mining-anymore
https://www.quora.com/Is-anyone-making-money-in-bitcoin-mining-anymore
Ok, you've now posted that link 3 times, and I don't think you've read anything written there yet. You might not want to use that link anymore.
Lets take a look at what people at that link have to say (I skipped those that were trying to push the Cloud Mining scam):
the total return on the project since September, 2013, is -27.2 percent
at the current bitcoin price of USD $430.73, I am currently overpaying for the bitcoins I mine to the tune of USD $0.85 per day. My mine uses USD $455.56 worth of electricity to mine one bitcoin
my effective BTC cost is USD $508.10. With the current market price of BTC at USD $440, it doesn't make sense to run much longer
at an effective cost of $997 per BTC. Will run until the halving of the block reward next month, then take everything apart
It's a specialist game or a fool's errand at this point. . .
It's neat, but buying BTC outright is easier
mining is a losing proposition
Mining isn’t generally profitable
I would hardly see this as a profitable activity
Note that NONE of them indicated that mining was actually profitable for the average person, ALL of them posted before "the halving" when mining revenue was cut in half, and there isn't a single analysis there that takes into consideration opportunity cost.
Absolutely, and I chose that article specifically with the intention of finding one from a perspective like you have. That is doesn't work. Unfortunately you missed the important sections of the article.
However, I don't hold it against you. I wouldn't expect you to show the stuff that doesn't support you. Anyway the whole point was to show you that 90% mining loss is a stupid statement. I agree with you overall the loss is 5% - 20% which is what I said originally. And at that rate I still think the idea is a good one.
For example you could buy all your food in bulk and save 10% but you probably go to the store because it spreads the cost out overtime. In this case the mining is serving a purpose. Not only getting new coins but also putting those new coins in the hands of people that might believe in the system, and are going to spend them. There are so many benefits that can come from mining for a website like wikileaks and yeah maybe there is a money burn of 10% at the current time but so what. If you don't want to do it you just send your donation this is only for the people that want to. No one gets hurt.