Or: use the in-game tool to play the game with people you like to play with. And Nightshady isn't an allegeded cheater, he is a cheater plain and simple. Like the overwhelming majority of the 'hardcore PvP community'. Finally, if people start cheating in a game and play 'the way they want to' without any consideration whatsoever for other people then they shouldnt be surprised others simply do not want to play with them. No hard feelings and all that.
So far I havent used the block tool at all in-game, and I've become nearly un-gankable (except for when I am drunk or some such

). Still, if these individuals insist on being nothing more than boring time-wasters yelling childish insults while cheating than I dont think I'l lose much by blocking them. They offer neither fun gameplay nor a challenge at the moment, and I'd prefer to keep my games clean of cheaters on general principle. Luckily for shady and the gang they are still allowed to play in Open, but that doesnt mean other players arent allowed to be a bit more strict.
tl;dr inconsiderate "I have the right to play as I want!" Cartman-style cheaters have no moral high ground and should expect the majority of people to just toggle them off.