Spamming

"Spam" refers to posting identical and/or irrelevant messages to one thread or many different threads that has nothing to do with the intended subject that disrupts a thread or fills the message board with clutter.

Mass PMing people you don't know or who haven't invited you to PM them, boosting post count, excessive bumping of threads, one or two letter replies (i.e. ok, LOL, Yes, agreed, nods) and excessive use of smileys as a response are all considered "spam".