I agree on the point, that measures must be taken by the group leader if there happens to be trouble with members, but the one who should be adressed is the individual him/herself.
Ragnar, or any other clanleader, is not responsible for a certain mindset an individual player has, so casting the blame on the leader, or even the entire clan, is in my view, plainly unlogic, and very unfair to the innocents who suddenly get flamed and branded by the community in the result.
Ragnar is doing his best to keep things under control, he warns the players who misbehave, and bans those that refuse to listen.
And it should not be him who is to blame for a mistake or misbehaviour that was unforseen by him and the members.