Bards kiting in PC populated zones (Oasis)

[glothdrogen]

So, a nice little Cleric spent over 45 minutes to an hour benefitting from a bard named Lyghtnyng pulling the entire zone from xp groups. I got to pull 1 mob for my group after mobs spawned before this guy comes across and pulls everything in front of us. then spent the time waiting on respawn basically saying none of us in zone could legitimately say anything about it. there were 24 people in zone, 2 of which kept the rest from xping. I don't care about PLing, it's allowed. But there are rules to keep them from pulling xp mobs from groups isn't there? Please do something about this