By deleting posts for that reason you're sending the message that only the admins' opinion counts, and that there's no freedom of expression.

Keep the "no plagiarism" rule if you want, but let others say their opinion on that.

Terry from Soul is a villain. Doing your job doesn't justify an attempted murder. The Great Beyond is where people who die go, so sending someone there is murder. Terry tries to kill Joe Gardner for cheating death. So why is the Dahaka from Prince of Persia a villain but Terry isn't?

The main antagonist of Sing is the SFJ Bank. It's been a threat to Buster from the beginning of the movie, while the bears were just enemies of Mike and not a threat to Buster until near the end of the movie. I think their claim to be the main antagonists is based on them being villains unlike the SFJ Bank, similar to putting Scroop as the secondary, later true main antagonist (though I think that one was actually because people thought Silver's redemption was earlier than it actually was).

Jackson Storm is a villain, not just a cheating jerk. Cheating is villainous if it involves assault. The only difference between him and Chick Hicks is that, while the latter won all his races this way, the former only resorted to it when he was losing to Cruz Ramirez.