This article is from the Stand-up Comedy FAQ, by Steven Rosenthal and Steve Silberberg (email@example.com) with numerous contributions by others.
A. Then shut your pie hole and post something funny.
You're either new to the group or not a comic. People who peruse the group
the first time often have no idea what's going on. Comedians are notorious
for remembering and calling back posts from days, months, or even years ago
and using them as ammunition to rip others. Many of the posts that seem
nonsensical at first usually turn out to be the funny ones if you've been
paying attention. The posts whose contents are most readily apparent to a
newcomer are the functional/informational posts, and those are generally
dull, especially to outsiders who really don't care what an opener in
In order to fully appreciate this group, it's helpful to know the
characters. Many of the regulars have been posting here for 2 years or
more. Comedians are notorious for their amazing ability to recall any
event, no matter how trivial, especially if it can disparage someone or
bring forth humor. Lurk for a few weeks. If it's still not funny to you, go
to rec.humor and talk to those morons.