Personally I've been playing 4 years and never seen any problems at sites with rate of fire (auto).
I have seen issues with rate of fire when it's semi only (binary/hair triggers etc) but not that frequently.
I do see daily issues on a game day with people not taking hits and rifs been over site limits etc.
I really don't think this is the issue most of you are making it out to be. I'd much rather address the inconsistencies with site chrono's and people joule creeping along with not taking hits than 3-4 people with a high rate of fire being potential dick heads.