Do you have a good link? I think it's an interesting subject, but all I can find are posts made by SO mods and admins which are generally positive about using bots to detect bad posts. If there is a controversy, I suppose SO would probably prefer it be hard to search for.

I've thought many times about ideas for platforms which involve user-submitted content, and I've always given up on them quickly because I couldn't think of a good way to handle moderation. It's probably just wishful thinking that ML could significantly help with that.