Earlier quoted context omitted.
> Maybe Youtube makes a deal with T-Mobile to keep videos playing longer (before packets start dropping) in exchange for money. This money might allow T-Mobile to invest in other parts of its infrastructure. That half of it isn't the problem, and I doubt anyone would argue against reasonable things that make it easier for a provider to increase their network capacity. The problem is what it does to YouTube's competit…
> The problem is what it does to YouTube's competitors: they now suffer because YT can afford to ask T-Mobile to make their traffic more important. But simply by virtue of YouTube's market share, an economic incentive exists to install backbone links that help route YouTube's traffic (as opposed to others'). In other words, if two backbone links might be installed, the one whose outcome makes access to Youtube more r…
A fair traffic management policy would allow for YouTube users to consume bandwidth in exact proportion to their share of overall demand for bandwidth. Traffic shaping on top of that could only have the effect of meaning that a YouTube user will get more bandwidth than their Netflix-using neighbor even if they're both paying for the same service and both content providers have CDN nodes at the same local peering point. That's not adapting to demand, that's artificially distorting the market.