i agree with the original poster that spy's are crappy, and certainly hamper others fun, but for them its fun to spy(im guessing here)
but to get rid of cross country chat would be a detriment to the game, its funny when you get someone on the other side yelling at you at how much you suk,because they cant kill you, 1vs1.
but really, i do like talking to the opponents i just had a great fight with, some of the coolest people ive met were the red guys at one time or other.
and just for the record not all side switchers are spies, id say most fly for the country with the lowest numbers, and only a very few are actually spies,( although i could be wrong.)