If I wasn't relevant as you claim now, you wouldn't bother to reply - right? Next time you wanna change your IGN, change it to Madface.
OT: There shouldn't be made any type of regulation about this. It's silly as hell. GM's shouldn't consider when they could go AFK or not, this is absurd. And consider that when you whisper a GM while they're AFK, you might not be the only player who tried to reach them out.