Of course some people don't follow the suggested guidelines, of course some people will do whatever it takes to shoot someone down. The AvA will never be a perfect arena, but there are also some who want to have historical air to air engagements without climbing for hours, and without score whoring.
To me, the AvA's purpose is to provide historical matchups with less red tape than the scenario arenas, but more depth than the "I pwn you" MA arenas.