I would actually like to know if this is considered an exploitation. Is it an exploitation if you do it once? Or only if you do it repeatedly?

Edit: The reason I would want to do it is because I don't agree with Blizzard's arena system design, and this, if legal, would give me a way to make people happy by causing inflation in the 5v5 bracket, so that I and them could reach their personal ratings for the basic gear. Fool the system.