One time I gave 20+ merits here to an account I thought was here out of their own general interest... they joined a signature campaign within a week, and later it turned out to be the 5th alt account of a banned user (they got their ban removed and are still posting here under at least 2 other accounts, but that's not the point).
I remember I think he is
naim027. I remember his story how he got perban first, then unban, then again ban (with alternative accounts confession). If I am not wrong.