Well, it was already proven OP that you are copying and pasting posts here provide by
suchmoon here,
This has been discussed many times in this thread. And this can not be considered plagiarism.
I believe that is the mistake theymos was talking about:
I know of one case where someone was banned for plagiarism in the recent massacre, but a very careful reading of the context showed that the person actually did just forget to quote, and by "quoting" the post they were expressing an actual point even if it constituted their entire post. This person was unbanned without any sigban, since this isn't plagiarism.