(10) Don't post your email address and ask for an email reply. Don't send a private message with a technical question. The forums are for the benefit of all, so all Q&A should take place in the forums.
(11) Post questions with descriptive subjects. For example, do not post questions with subjects like "Help Me!", "Urgent!!" or "Doubt". Post subjects like "Execution Problems with Cron" or "Help with Backup Shell Script".
(15) No smoking in the forums.