Is it against ETS policies to have access to this material?
How can anyone have a policy that stops someone from having access to anything? At the most they can stop publishing that material (which they have) .. but if you talk about access, then I say grab it if you come across it and feel it will help you.
If the test material is out there, accessible by some, shouldn't it be accessible to everyone?
Sure .. it should be. And here is a little 'secret' .. IT IS. As I said earlier, if you do a basic search in this forum for GMAT plus, YOU WILL KNOW WHERE TO GET IT ... FOR FREE!!
I can't see how having access to old test questions from old tests is a violation of GMAT ethics, especially considering the fact that ETS publishes its own official guide w/old official test questions
2 things .. one is that these questions presumably still appear on the actual tests and any question that ETS is currently using is not allowed to be published for public.
Second thing is that ETS publishes its old test questions because they own the questions and these questions DO NOT come up in actual tests anymore.