I understood clearing that's why I said if he wasn't asking exclusively based on his example i.e asking a general question if framed cases have been solved before that's why I provided that topic of a scammer framing an innocent users, to let him understand that framed cases can be resolved. then later went on to give my opinion to the topic based on the example he gave. Read my OP you'll understand my reply.
I also think that you provided us with a quote about plagiarism, for which the user will receive a permanent ban, and not a negative feedback. And this already refers to violations of forum rules, and not abuses.
I have one question. Are there cases on the forum when an honest user is framed by scammers.
If you aren't asking specifically for your example then here is a situation when framing happened and it got resolved but it doesn't happen more often.
I just stumbled upon a proven case of framing someone for plagiarism:The scammer can take the original text from the forum, post on his website changing the date and write a complaint, and also delete it by editing it. We need to study this problem.