Oh, plagiarism! Disgusting habit, isn’t it. You just cannot zap those accounts.

The concern is more about grabbing stuff from other sites, but I do recall someone copying the content of another post and posting it as their own. 

Undisciplined

Doesn’t it give you a warning when you post duplicates and similars? I don’t post if i see someone else posting the same thing. I have over posted when there are only a few minutes between their and my posts. But other than that, I don’t see it happening very much.