I play with Fraps on at all times now and have caught a few instances of it.
However sometimes it is hard to tell if it's intentional cheating or just a horrible bug.
You and I both play on Ebon Hawk, and unfortunately, I seem to see at least one instance of cheating from the Republic side in every warzone I'm in. Of course, there are warzones with no cheaters, but it seems far more likely that there will be at least one. It doesn't always
win the game for them, but it certainly makes for some extremely lame moments.
I haven't spoken to many republic players to see what they feel the instance of cheating on Empire side is, though it seems to be a rather popular topic of conversation in Imperial Fleet pvp chat.