Someone down below mentioned ads, and I think that might well be the route they're going to try: charging advertisers to influence the output of the AI.
As for whether it will work, I don't know how they're possibly going to get the "seed community" which will encourage others to join up. Maybe they're hoping that all the people making slop posts on other social networks want to cut out the middleman and have communities of people who actually enjoy that. As always, the sfw/nsfw censorship line will be an important definer, and I can't imagine them choosing NSFW.