An explanation of the new icons could be put into one of the two FAQ lists for the site. (BTW, I've often wondered -- just why are there two separate FAQ lists?) Also, an explanation could be put in a moderator-generated thread that permanently stays at the top of the MB folder.
Yes, I considered both of those. But, you know, seriously who reads those things?
In my experience stickying a thread is the best possible way to make it instantly invisible. I guess a sticky thread at the top of the TOC folders would be the best bet though, in the absence of any other possibilities. But I have my doubts as to how many people would notice or read it.
There are two separate FAQs, IIRC, because one is the general FAQ for the boards dealing with board-specific topics and the other is the one set up by the Admins, dealing with topics specific to FoLCdom and the rules of this particular forum.
LabRat