Please abide by the following extremely reasonable rules if you intend to post in the forums.

• No Spam / Advertising:
  Advertising of any commercial product or service on these forums is not permitted. Chain letters and pyramid schemes are similarly prohibited.
• Flaming:
  Any material which constitutes defamation, harassment, or abuse is strictly prohibited. Use common sense while posting.
• Offensive Content:
  Material that is sexually or otherwise obscene, racist, or otherwise overly discriminatory is not permitted on these forums. This includes user pictures. Use common sense. We want to show this website to our mums.
• Illegal Content:
  Providing or asking for information on how to illegally obtain or provide software ("warez") or music is forbidden.
• Cross-posting:
  Posting a thread in more than one forum is annoying and thus not allowed. Just post it once in the correct place.
• Signature Size:
  To avoid annoyance, signatures must not be more than three lines of text. If images are used in a signature, they should be smaller than 15KB and no more than 50 pixels high.
• Copyright and ownership:
  Comments & forum messages are owned by the poster.
• Don't be a pain in the ass:
  Or we'll add some really embarrassing posts to your profile and email all your friends.

No, really…

Any penalties for the above rules are at the moderation team's discretion.
People have been banned(username/IP range) from the site in the past for causing trouble in the forums.