In my case last month Sir John, a foreigner in discord told me I plagiarized my personal experience about whitening the underarm even I provided doubled sources and references but he was kind for not flagging me. It was wrong it's really a great mistake to provide quotation like:
"No man is an island". -by John Donne- ( according to him, it is still plagiarism unless I put in the hypertext. So now I always avoid providing quotes.
That foreigner might not have known the concept of fair use.