Bringing back memories for me, Anon. It took me forever to find the source for all those Q related comments I kept seeing, and when I finally found 8chan, it was a bit intimidating. I didn't follow the "lurk for 2 years before posting" rule, but I did utilize Urban Dictionary quite a bit before making my first post.
You're right about filtering, and I don't hesitate to use it for anyone that shows they are only here to spam the board.