I understand why the person was downvoted, but not why the person was flagged. It doesn't make sense for someone to flag "AI art is theft."

Downvotes because you didn't back up what you mean.

Flagged because there are AI fanboys that want to sensor speech perhaps?

I would say that it absolutely deserved to be flagged because it was a comment of little engagement.

It both isn't directly related to the original post, and also didn't even make any particular arguments. It was just a 5 word declaration of fact, that is borderline offtopic.

Flagged because it was an unsubstantive comment as dang mentioned and also that it's increasingly a flame bait topic on HN, same as with Copilot and licensing.

Downvotes because the userbase here is rabidly supportive of any new "AI" tech regardless of the consequences, damage, or ethics surrounding it. But of course, we can never take a critical view of technology on Hackernews.