Here are some general rules:
1. Basically, just post images or quote text that is the pure essence of fail. Example:
Quote ()
4chan isn't for porn!
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2. Try not to flame others...unless it's pretty damn funny.
3. Err, still PG-13...there are some R-rated fail things on 4chan, tho. :3
So, put it all here; the fail quarantine!