I run a niche creative community, and we outlawed AI-generated content in 2022 as it was easy to see how corrosive it would be to the community. It hasn't been easy. We ban fake AI accounts daily and shrug off around 600 AI content creator accounts monthly. It's a lot of work, extra work that wasn't needed before AI content came around, and of course, that is an extra cost. I fear losing the battle.
What about charging $1 or $5 for an account? Seems like you could stem the tide pretty easily with something like that.
It'll stop the ones doing it for the lols, but I imagine they're a minority anyway.