I know he's using AI to make it, but it sounds like the problem is low-effort posting more than whether or not AI was used. It's important for people, whether it's in person or on a forum, to "read the room" and interact with others in a way that meets the norms of the place they're in, and obviously the AI summary stuff isn't doing that on your photography forum so it comes off as spammy. Maybe you could communicate general expectations like:
- Avoid bullet points and excessive formatting
- Use your own words to describe your photo