Re: Advertisers won't be happy.
"Me too. C'mon Reg, how does the maths work out?"
It's a trivial web search to find the answer. Coin mining is three or four orders of magnitude less profitable than advertising for a general interest site, worse for a specialist site like El Reg.
And it would, of course, be cheaper for the reader just to pay a subscription (unless you're stealing power from your employer).