How about a glossary ? I have in mind especially a list of the most used acronyms throughout the forums (or should I say fora). I know we're a few clicks away from google, wikipedia or other sources of knowledge. But once in a while an acronym is a little more difficult to figure out because its meaning depends on the context or research engines can't solve ambiguities.
Au gibet noir, manchot aimable, dansent, dansent les paladins
Les maigres paladins du diable les squelettes de Saladins.