"This is AI" is the new karma farm comment.

There is no doubt that there are posts that are totally artificial and have no content, no expression, no human thought. The highest expression of AI slop can be found, for example, in the llmphysics subreddit and others of the same kind. On the other hand, there are post authors who write their own draft, in an extensive and confusing way, and then use AI to edit the content to make it cleaner, structured and organized. Unlike AI slop, there is human content there, there is thought, even if the human voice may end up being filtered through the extreme correctness of AI-assisted writing.