I've seen shmem post a wonderful note providing links on how to frame a question, where the FAQs are, etc. to new arrivals. If we're talking about new tags, I'd like to see <hello>, which would recapitulate all this. 8-)
Even better: have the system post this node just before the edit box when someone is writing a comment and do so for their first x number of posts or until they reach a certain level.
CountZero
A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James