Headsets and controllers are very two different things. MLG allows people to bring their own controller as long its not a modded controller, therefore everyone will be on equal footing. PC people as you said are required to use headsets, who keeps track of that? Are you telling me that if I go to the LAN I will see every single person in the PC section using them?
I can understand that it can be a big advantage, why do you think people buy them in the first place?
Also Mitch, i’ll take you on with your challange. If you bring it up, I will play 1v1 against you.