Rules for uploading/manual approval?

Are there any rules for uploading AI art here? Specifically do we need to go through a manual approval process for each upload like Danbooru?

Yes, the modqueue still exists. Particularly bad things or content that breaks the upload rules will be deleted.

If there is doubts on the quality needed check https://aibooru.online/posts?tags=-status%3Aactive+order%3Aid for what isnt passing.
Consider uploading safe realistic pictures or content you would find simillar on danbooru, other rules on what kind of content is desired will come soon.