shitposter

noun

1. (Internet, derogatory, vulgar)A person who makes worthless posts on a message board, newsgroup, or other online discussion platform.

   “You shitposters, take some advice: either you start to post something worth reading, or optionally get the hell out of here, hunt down James and tell him personally Metallica sucks, ok?”

   “Why are you morons encouraging this shitposter?”

   “If you are a troll, just leave this newsgroup - it already has enough shitposters without you.”