When I first joined this site, I had to figure out “OP” from context. Finding out what “CW” means was much easier, as it is often spelled out in full. CFV I had to be point-blank told about. It seems that there ought to be an obvious and easily-accessible place of explanation for all acronyms used on this site and, for that matter, all the jargon used on this site, for things like “closed”, “dis-accepted”, and even for seemingly obvious things like “up-vote”, “down-vote”, and perhaps a candid list of hidden gottchas, like the silent no-warning 5-minute timeout on editing a comment.
It seems like it wouldn’t take much to have a drop-down list available on both main and meta, the text in the box being something like “click here for an explanation of ACRONYMS and jargon used on this site”. This drop-down box could be in the right-most column where currently tangential stuff (like questions from other sites) is currently displayed.
WDYT? (What do you think?)