Most forms of encryption also do very little to effectively conceal which application-layer protocols are in use, which has implications for ISPs with incentive

Most forms of encryption also do very little to effectively conceal which application-layer protocols are in use, which has implications for ISPs with incentives to degrade BitTorrent, third-party VoIP, etc.. edit: It occurs to me that I'm apparently goddamn old now, and a good few HNers of 2017 might be too young to remember the whole Comcast/Sandvine/BitTorrent mess [1], viz. the history of this not being a hypothetical concern. [1] https://en.wikipedia.org/wiki/Sandvine#Network_neutrality_debate https://en.wikipedia.org/wiki/Sandvine#Network_neutrality_de...