- last post: 01.01.0001 12:00 AM PDT
To be more erudite...
Spamming: Is to speak about anything off topic. Though, more partiularly, it moves to annoy and waste people's time. Technically this thread is spam but as you can see... it doesn't annoy anyone so all is well.
Bumping: Is posting nothing at all just to bring your topic back up to the top. Some people find something greatly interesting that noone else in the world does so they keep posting replies to themselves to throw it in the face of those that just don't care.