I have a standard rule for games I GM; I reserve the right to defenestrate the rulebook if I deem it necessary. I have found that the fastest way to learn a system (possibly any system, but I don't have time to test this for others) is to GM it. You /will/ learn.
For rules lawyers, any system; if they can't quote chapter, verse and sourcebook, the rule is not valid.
I've been debating this. Not sure if interest. I don't know from Roll20, and I am very hesitant to play a game of that nature offsite, on a site who's TOU I don't know and who's staff I have no feel for.
I am also not sure - if the game isn't on the E at all - that this thread belongs here and not in off-site games.