I personally don't really care at all if people spam fish, heal spam, buff spam, silence everybody but one person they're ganging with, it really makes no difference. If your trying to PvP with a friend, why do you think they made the 2 person room?
If you wanna PvP with multiple friends, just try and go to another room away from the people ganging/spamming fish. If they follow you into the next room you go to, then you have a problem.
Also: on Trowa's topic of having to go to the healer each time he uses up his SP on an Asura or something. Fish would be fine if there were some kind of penalty. The blind effect is supposed to be that penalty, but that obviously doesn't work sufficiently enough does it.
In PvP and in WoE the penalties for using fish should be increased.. like after you use a salmon, your silenced for ~30 seconds?
@Argros: that might be just a bit too much