While it is a good idea to avoid MOA (although I understand this midair did not happen in MOA) the fact is that in the Great Basin we flying in MOAs on a regular basis as they occupy large portion of the soaring area. Avoiding the MOAs basically mean avoiding flying cross country in the Great Basin. I doubt pilots are talking to flight services, we are all on 123.30 all the time. I always believed that by flying with a transponder at least they know I am there and can avoid me, sounds like this is not the case.

Ramy