What's wrong with this lol. It's not like it's breaching any security? The item scam part is bad but idk why people are so concerned about cryptomining
idk would you like your gpu/disk being constantly under use cause literally every site and program you have is running a cryptominer? yeah that's a slippery slope/black-white fallacy, but more and more programs and games have started sneaking this stuff in to make $$ off of unsuspecting users, and if left unchecked developers might take it to assume that its ok to hog all your computers resources if their game is open.
think how annoying windows update/security is super loving annoying when it takes all your disk time doing some sort of behind-the-scenes stuff and you can't do anything to stop it. this is the same. wouldn't it be less annoying if windows actually told you what its doing and/or let you disable it?
there's also the point of hardware degredation but ive heard both sides, saying it has a significant/insignificant impact, so i'd do my own research on that if i were you. its a possible secondary point.