Use WebRTC when possible

[bifurcation]

WebRTC data channels let browsers pass data directly between themselves, without relying on the server. If this system could use data channels for actual content delivery, the server would only have to route contact information between browsers, rather than the actual data. This dramatically improves the scalability of the system. Sharefest does basically this using BitTorrent.

[mpancorbo]

WebRTC is not trustworthy for anonymous use because of IP-leaks