I would assume browsers could put up a permission box for WebRTC usage, or ask for permission for sending more than a certain low bitrate. Of course, in the cas

I would assume browsers could put up a permission box for WebRTC usage, or ask for permission for sending more than a certain low bitrate. Of course, in the case of a site using PeerCDN the incentive for a site visitor to allow it would be negligible as compared to a website using it for a VoIP service. Edit: Grammar.