The loophole is simply this...........P2P in itself is not illegal, it's the ways in which people use it for, those activities themselves is what is illegal.
So get your things straight, just because yes everyone knows basically what it's for, technically it could be used for sharing cooking recipes......so therefore the only thing that is illegal is the people sharing the movies, music what have you, but in itself P2P is not illegal...
With that I suggest DC++, you can get the best recipes for key lime pie on there