said by TK Junk Mail :

Encryption won't prevent detection of P2P use. And WHERE your data is going to & coming from will allow detection as easily as WHAT is being transmitted.

said by factchecker :

You are HALF correct... Encryption will not hide traffic flows. Even encrypted P2P traffic looks like unencrypted P2P traffic. Anyone with access to something like Cisco's NetFlow tools can easily spot P2P traffic.

You are incorrect in asserting that seeing the traffic flow will allow you to know "WHAT is being transmitted." Unless the encryption is crap and easily cracked, you won't be able to examine the contents of the packets and won't be able to know what is being shared.

said by TK Junk Mail :

You misread my statement. I didn't say they would see WHAT was being transmitted - just WHERE. Implied is that WHAT was being transmitted was seen when unencrypted.