I wouldn't be surprised if the AI-companies end up earning from both sides: earn from creating spam, and earn again from detecting their own spam. It's like creating virusses to sell your virus scanner.
It's already happening:
Quillbot is a website that allows you to generate AI texts, has an AI text detector, and also allows you to humanize AI-generated content, lol.
I don't feel like people are looking at the long game here as far as AI and this forum is concerned. Yes you can generate posts, yes you could build some sort of detector, yes it probably has some good things. The issue is what happens when this forum is just AI generated posts? All the real users dropping knowledge and helping bitcoin grow disappear.
All the companies advertising see it as a spam haven with no real users. Forum starts slowly dying and all these people that were too lazy to make an actual contribution and only thought about making a few bucks will have to look for a new income source and 1 that likely pays a lot less.
So While I think detecting AI and getting rid of those that are using it here on the forum would be a great idea, I also think it won't happen and my above concern will happen.