Looking at their pixiv, the artist used to post completely AI-generated images, but as noted in the commentary of this post, it seems that they started to only have their work be AI-assisted. They now only use the "little" AI-generated illustration tag on their pixiv posts. Not sure where this stands on danbooru, this is just what I could find.
Funny read the comments at his pixiv and you won't see any complain whatsoever. Or artist blocks complains.
Then again if it's good then why bother.
Idk... man, people just don't really care in the comments
Well I guess they kinda do, back when I was subbed to this artist's fanbox, some of the comments under the locked posts said they liked the new art - so they're aware of the old vs new, they just don't really care
