I think that for now they're just going to use it as a means of figuring out what kind of AI-involved content people are ok with and what kind they react negatively to.

Personally, I've developed a strong aversion to content that is primarily done by AI with very little human effort on top. After how things went with Pixiv I've come to hold the belief that our societies don't help people develop 'cultural maturity'. People want the clout/respect of being a popular artist/creator, without having to go through the journey they all go through which leads to them becoming popular. It's like wanting to use the title of Doctor without putting in the effort to earn a doctorate, the difference just being that we do have a culture of thinking that it's bad to do that.