Aye. I joined a farm group today for Ravana EX and the bonus law message came up. I didn't care as long as we got the kill, and to me Ravana EX is not a very demanding fight.
We hit enrage twice. Didn't clear once. I realized there were multiple new people immediately. That's just not cool. Don't join farm parties if you don't know what you're doing. It takes time to put up a PF and things like one new guy joining can make an hour of waiting and twenty minutes of wiping be for naught.