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Asking to remove vote I guess.

No
I just want to know the reason

That's what I said? They are probably asking you to remove your vote on the plagiarized content?

Ooooohkay!
Thanks but I can't easily locate any of them because I don't give less than 15 votes per day

Because voting plagiarism.

Do you mean "voting post that has been notified as plagiarism"?

Yes. Sorry if you don't understand. English is not my language.

Okay
@enforcer48 just explained it all for me