[Kittyneko]

I don't consider multiboxing cheating, though it is obvious you have an advantage over other players. But is this an unfair advantage is the question.. I believe not. There's nothing unfair with buying another account and computer/console to run the game on.
Not someone else's account, as this is forbidden; you will gain an advantage by breaking strong rules, I consider that the same as using bots, as anyone can download a bot.

I found my answer through this simple comparison:

It isn't cheating when your neighbour drives an old trash car and you a Porsche.


I personally multi-box quite often, using my friends account to PL myself, or do HNM's with together, etcetera.