being someone who was in, it really pisses me off when i see some asshole weaing military rank they didnt earn, patches form units they were not in, or the improper wear of the uniform period...
I was never in, and I still dislike it anytime I see someone wearing the actual patches/ranks/etc on their camo.
I don't care one way or the other if someone wears military style BDUs or ACUs or whatever else ends up being developed in the future. For the entry level player just starting out on a tight budget, surplus BDUs are a pretty reasonable way to go (cheap and durable, even if heavy).
But trying to look the 'actual' part, outside of deliberate historical re-enactment (and in the context of true re-enactments, not something like OK D-Day. That is NOT a re-enactment), is just not right at all.