To join the #4chan IRC channel (irc://irc.rizon.net/4chan):

1. Choose your nickname and click "Connect."
2. Type this to register your nickname:
   /msg nickserv register YOUR_PASSWORD YOUR_EMAIL
3. Wait for an email from Rizon and type what it tells you to complete registration.
4. Type this to join the #4chan IRC channel:
   /join #4chan