Those boards have better moderation, something you need regardless of AI, which is my point.
AI doesn't add more danger to the situation, you just need to moderate as usual. If you are using some computer program to add more content to your web site, you will just have more content to moderate. News aggregators do have this problem for example, as sometimes automated crawlers post sensitive content and that needs to be marked & deleted before being published.
Saying, "oh but our algorithm can cause depression, so we moderate the access to it" doesn't make sense, as any content can cause it and needs to be moderated.
That's why content moderation is one of the hardest problems of this age.
You use computers to do it? Computers develop biases. Humans? Same! It's very hard to scale and is a problem only remotely related to AI-generated content because AI generating content increases the input to your moderation system.
Now I hope it is clear what I'm trying to say :)