If you've read my previous post and are still wondering, even after the Postscript, whether I was really being fair, you may be interested in this from Level 3, another major Internet transit provider like Cogent, which I mentioned in my last post. It should come as no surprise that they are also having problems with major broadband providers.

As the article notes, Level 3 has a total of 51 peers, i.e., other major Internet providers with whom they connect so that they can route traffic from their own customers to the portions of the Internet that they don't serve directly. Level 3 has no issues with most of those peers; there are only 12 with whom they observe significant congestion issues:

A port that is on average utilised at 90 percent will be saturated, dropping packets, for several hours a day. We have congested ports saturated to those levels with 12 of our 51 peers. Six of those 12 have a single congested port, and we are both (Level 3 and our peer) in the process of making upgrades – this is business as usual and happens occasionally as traffic swings around the Internet as customers change providers.

That leaves the remaining six peers with congestion on almost all of the interconnect ports between us. Congestion that is permanent, has been in place for well over a year and where our peer refuses to augment capacity. They are deliberately harming the service they deliver to their paying customers. They are not allowing us to fulfil the requests their customers make for content.

Five of those congested peers are in the United States and one is in Europe. There are none in any other part of the world. All six are large Broadband consumer networks with a dominant or exclusive market share in their local market. In countries or markets where consumers have multiple Broadband choices (like the UK) there are no congested peers.

Emphasis mine.