You understand this is completely contradictory right? The problem is not that he found a bug is that he constantly abuses it and he's the only one using it as far as I know.
How many players have access to the bug Forsee has right now? It's just him, maybe some other dude, and no one else? If everyone can access to a bug to the point it becomes a combat mechanic then how is that a problem? Is a matter of learning how to use it, and it's later a matter of what admin approves it's use and what admin doesn't. An example for you, in GTA SA multiplayer there is a bug known as C-Bug which allows you to shoot with the deagle faster, literally every player has access to it and people learn to use it, everyone has access to that advantage, but despite this some servers decide it unbalances the game and just ban it, so if you play in x server it's a combat mechanic, just as bugs are in Warband, but that is fine, because like I've said, you can pick up the game and learn to use it.
Compare one situation to the other, yeah, it's totally different, this guy abuses a bug only he has access to, and despite the other players are asking nicely to not use it, because no one else can use it, he just goes on, having an unfair advantage. If an attitude like this shouldn't be punished then I don't know what should.