Clicking on #2,000 will take you to #2 and will not part your channels.
Listening to people tell you "Type /JOIN #2,000 for warez!" teaches you many life lessons, however.
1. Don't type /JOIN #2,000
2. Don't be a sheep and blindly do as instructed.
3. Don't ask people for warez next time!
The
/join #2,000 is an age-old gag, usually played on the annoying and deserving in order to get them the hell out of the channel. It's a moment of embarassment that I feel every user should endure at least once.