AH you see, They aren't very shit talk worthy. It's all their troll friends(like you) who are. Anyone reading this thread can see how people act on the forum towards anyone who doesn't follow their clan clicks. Just like a bunch of high school grils.
Anders, on one hand you are right. Griefing should be punished, and whoever looks away supports it.
But on the other hand regular reporting of minor offenses can get perceived as snitching. And no one likes snitches. You should always ask yourself, if the offense is worth an own ban thread, if the expected punishment is worth an own ban thread, and perhaps if there is a way you can improve the system we have (the last point is directed to everybody).
Sure as hell it is difficult or even impossible to tell what happened, because griefing can happen on accident or on purpose, and the only way to find out what the reason was is looking into somebody's head. Which nobody can. Except Dr. Frankenstein, Dr. Mengele and the like perhaps.
So perhaps a system with witnesses could help, or reducing the "M"-report kick value from 5 to 3. And some kind of invisible language filter, which determines the "cursing percentage" of a person, only visible by an admin. Including words like "mother" and so on. It's definitely nothing objective, as someone can just have a crude way of joking in chat ("Come on, lads! Let's drive those fuckers back to their dirty whores of mothers!" in teamchat is more of role playing than offending), but it could help the admins judging cases. And all teamattacks could get recorded, not only the reported ones. That way you could recognize trouble makers better. Although you should always keep in mind that those systems are still far away from safe. Someone who just swings more carelessly than other is not neccessarily a griefer. Although I think if he gets punished for griefing, there's not a lot wrong done to him (you could say not caring and teamhitting is some kind of unpersonal griefing).
All I want to say, Anders, is that I'd like you to understand that people (me included) don't like snitches. And ban requests sound like snitching ofen enough.