I honestly don't understand why people are SO adamantly against proxy chat. The realism argument is stupid. (it always is, for anything related to videogames, unless you're playing a simulator)

Proxy chat would:
Make it easier to communicate with someone who isn't in your squad, and perhaps isn't in team chat. Besides, wouldn't it be faster to stand near a guy and talk, vs searching to find whatever channel they're in?

It would also add an element of depth to the game. Spying on opponents. Being able to stealthily get near (within 10m) an enemy and hear what their plans are. Or even just know they are around a corner because they can't shut their mouth. This would also give a little more reason for players to level up their stealth (using profile dampening skills and mods)

For those that say that the spying is a BS mechanic, I'd tell you to just shut your mouth ... problem solved. Or as many Eve guys would say... HTFU.

Regarding the trolling argument as it being the only thing players would do. You can say the same thing about LAVs and even guns. I've seen players purposefully TK others using the "runaway LAV" trick. I've also seen players spend SEVERAL minutes following a guy around just shooting hundreds of rounds into their back... just to be annyoing.

If someone is going to troll, they'll find a way. You cant keep out a useful tool for communication, because someone MIGHT use it to troll.