If you wish to sign up, the template could look something like this:
Character Name: Rilaks
Item Level: 399/401 Cata
PvP Exp: 2v2-2034, 3v3-1808
Available: All Week, Evenings
You don't have to leave your guild, and this does not mean you're committing to a particular schedule, this list is to simply make forming RBGs a little more convenient for those who are interested.