Look at this thread created by Royse77 himself asking the community to determine if user (x) is using AI to generate posts for his weekly quota signature campaign: I require community feedback (Thanks)
After a long discussion, no one can prove if the accused user was using AI or not because all those AI-detecting tools are not accurate and not reliable at all, as they gave contradictive results. So please just try to check one of the posts subject of accusation in that thread by using all the tools mentioned in above posts and let's see if you can determine whether it's AI generated or not.
Also note that the restriction on using AI is only limited to signature campaigns rules (only mentioned by Royse77 for now) and not included on the forum's rules, if not anyone found using such to post should be allowed to face the consequences by forum administration and not by users using the trust system.