Same reason webtorrent isn't quite bittorrent. WebRTC gives you P2P in a webapp, but it doesn't let you connect to arbitrary hosts and ports. You could have an

Same reason webtorrent isn't quite bittorrent. WebRTC gives you P2P in a webapp, but it doesn't let you connect to arbitrary hosts and ports. You could have an onion routing protocol derived from tor or i2p that uses the webrtc data channel. You could even, like webtorrent, have the concept of hybrid nodes that existing network to the new webrtc-based one.