I think that a ban on wearing a signature will cool down scammers, and those people who were banned for an accidental or innocent mistake will return here. There were many of them in 2019. If they are still devoted to the forum and have not created an alternative account, then surely their posts will be able to warm the heart of the admin and get a second chance.
That's true, I forgot about the Great Plagiarist Extinction of 2019. There are a handful of helpful users who got caught up in that, their forum careers extinguished by a bot. They may have only plagiarized once or twice, and hey everybody makes mistakes and has moments of weakness. But I emphasize this was only a
handful of the hundreds of accounts that were banned by the Plagiabot.
How do you feel about the idea of statutes of limitations on plagiarism cases? I think punishing somebody for a one-off offense done years ago (talking like 3 or more years ago) is a bit too stringent and the current plagiabot running around is a bit out of hand, leading to the banning of people for a mistake committed in 2014. Maybe the query or the rule should be tightened a bit. Just my opinion.