[EricH]

Definitely, a bit of teaching would help.

Some things to cover in teaching:
-Standard forum etiquette.
-Spelling and grammar (while we won't not answer you if you misspell a word, having the right spelling, grammar, and punctuation does wonders for understandability).
-Tone. So many things can ruin a good forum posting, but having an aggressive/flaming tone is probably the big one.
-Topics to avoid. There are a few of these, but in general, three stand out: student vs mentor debates, baseless allegations of cheating (which has an annoying tendency to come up in the student/mentor debates), and the classic "The refs made the wrong call, now my team is 60th instead of 45th" or similar discussions. (Though, the last is dependent on tone. If you ask for an unofficial, broader discussion of an interpretation of a rule because you want to further your understanding of why you got X instead of Y result, chances are that you'll be just fine.)
-Proper placement of a question (i.e., all the subforums)

You may also want to talk about a few of the features of the forums like the reputation feature and the spotlights. Oh, and the search feature. It's amazing how many people don't find that one without being told about it.

Oh, and skip the test. This is a class that goes straight to the final, and the final lasts for a long time.