I believe there some an sticky threads showing useful information for new members. As JT explained on the beginning, a thread showing for what reasons you can receive warnings, or bans could be a great idea.
My idea of having an ATRL Dictionary on the place could be very helpful too, something like most used expressions on the site, who started using it - ok that might generate problems, haha-, where are they used the most, etc. At least I consider this idea interesting being a person who has recently finished its advanced course and is trying to know the different meanings of slangs in English.
Glad to see this thread is back, by the way. I couldn't imagine ATRL without a feedback section