LOL i don't remember any of those ever being used...oh well
hmm the only acronym i can think of is "LOL" = Laugh Out Loud.
Maybe some of these FAQ's would be good?

How do i edit my posts posts?

How do i put a signature in my posts?

What is UBB code and how do i use it?

how do i quote directly from someone else's post?

How do i use private mail?

What are the "rules" of the forum? what not to do.

hmm thats all i can think of.