I have to agree, as long as proximity still includes full party/fireteam chat so i don't loose contact with my buddies because i decided to split off and pull some solo player out of a jam (like others have said), and as long as there is an easy way to find and mute players who are causing problems (also like others have said). The option to turn if off, by the way, i think is a really selling point for this idea as I can definitely see why some people would just not want to bother, particularly if mic trolling becomes a wide spread problem. That said, Im afraid that we will end up with the same problem I have with every other game (on xbox), where people just don't plug their mic in period. Not sure how it is on PSN, but that is becoming a major problem on XBL, and I end up not plugging in my mic most of the time either because it seems there is no point anymore.