I don't get where Arthur thinks Walker is "directing vitriol" at him. I mean, wasn't it Gies who attacked Walker for having an anonymous source in the first place, when the reality is that Gies has regularly cited anonymous sources on GAF in relation to console specs and thelike? From how I see it, Arthur started this spat, and didn't really have a leg to stand on when John defended his journalism.
However, there is definitely unwarranted vitriol heading Arthur's way. When he mentioned it to me last night I checked out his @mentions to see if he was bullshitting me or not, and there was a fair bit of abuse being hurled at him. It's one thing to argue with someone publicly, call them out, or whatever, and it's another to just wish they'd fall under a bus or something.
Ya, I agree, the name calling is pointless and takes away from any reasonable points. He has enough out there that you can have issues with, without relying on insults. I will say though, his attitude probably attracts others with similar yet less...mature mentalities, which increase the amount of aggression he gets on twitter.