Your source is not wrong. The point is - as showed in my last comment - that @sirdelly cited this source.

Do you understand what plagiarism is?

LOL. You don't.
I wrote here:

What is plagiarism? Plagiarism is the act of taking the writings of another person and passing them off as one’s own (source 1, source 2). The crucial point here is that the taking of writings of other people must be made without attribution.

I never took writings without attribution. Thus, I never plagiarized.

You have exactly one job (that nobody gave you in the first place), and you fail miserably at that one.