I dont think that for serious traders who are committed to constant KYC trading will be a problem. I agree the exchange should know who is trading in large volumes from them.
KYC is not a problem, this procedure can not be canceled, it was invented to eliminate scams.
I do not understand a bit how this procedure saves from scammers? For example, for bounty hunters, they either did the work and the manager accepts it or didnt do it and they dont get paid. Why complicate things and apply KYC?