We can just abolish any so-called "ban evading" rule because it's useless in any case.
I disagree. I believe that those who commit plagiarism, perhaps unintentionally or unknowingly, deserve a second chance to redeem themselves.
My suggestion was including a second chance: just create new account.
Of course, old account getting trashed as punishment for plagiarism needs to be accepted.
But from a new account, everyone could have a second chance.