You know that difficulty has gone up 23% since the beginning of September right?
I checked on Blockchain.com and it went up a 20%, just like the payout drop.
Then I guess the calculator on f2pool is inaccurate and BTC miners are not profitable. None is.
If the dificulty increases 20% every 2 months all BTC miner existing now will be useless in less than a year unless BTC price catches up, meaning at least 20% every 2 months.
Is not a risk, it is sure that the whole insdustry will go bankrupt next year.
How is it possible?
23%
17.615t + 23% = 21.66t which is what it is now.
And its going to go up another 4%-6% in a few days time.
The industry won't go bankrupt. Just people buying overly expensive equipment and using it on overly expensive electric tariffs.
BTW for a long time now ROI on most equipment is calculated by the manufacturers to be around a year at least. They raise their prices to keep that ROI figure.
Most of the industry is mining on equipment that cost a lot less than it does now, but then bitcoin was worth a lot less then, they took a gamble on that 12 month ROI and it paid off.
The hard truth is that around a year ago a 100TH/s S19-Pro cost under $2500.00 and bitcoing was only worth $10-13K but diff was 19.2th ROI was probably around a year.
There are people on here who have been mining bitcoin for almost a decade, there have been good and bad times, but people keep on going. Even when you are just breaking even, you keep going on the hope that bitcoin will be worth 10X what its worth today/last year/etc
I bet you a year ago no-one really believed that bitcoin would be worth 6x what it was then. But it is.