The problem here is that even if Greedo didn't create the first sock, he still created a bunch of other ones, and he keeps lying about it. In this sense, it's similar to how you can still be charged for breaking out of prison even if you were innocent of the crime that put you there in the first place.
What really bothers me the most though, is the constant lying. As if we're all just some dumb suckers that he thinks he can get one over on. Not too long ago, he actually PM'd me on AAD, talking about how all those socks were not his (his brother's - who just happened to quickly familiarize himself with Atlas), while that same night, he was logged into and posting on Atlas using a sock.
Also constantly derailing threads and generally being bad. This place is better without him, and that's what really matters.