Unfortunately, being on IRC is not the same thing as being in-game... The GMs were assigned to provide immediate assistance, as I understand it, so if they have some free time on the computer, it would be preferrable that they spend it during the few tasks GMs get to do right now, in PS itself..
A short while ago Elscha became disgusted at a troll in-game and came into IRC to ask Grakrim to intervene, but to have to do that every time is a bit much, in my opinion.