The subject line is something that Comcast, at least, needs to ask itself. I've had my troubles with them - day long outages, and - over the last month - constant micro-outages (just long enough to knock my IM clients and/or IRC channels over).
It seems that I'm not the only one with Comcast troubles - see this Twitter scan that radiates out from an annoyed tweet by Mike Arrington. Comcast doesn't realize it yet, but this could be the same kind of PR problem for them that "Dell Hell" became for Dell. This little comment in the Twitter scan pretty much says it all:
I don't get it. Why can't these companies make money simply selling "dumb pipes" to the Internet? I'll pay for that
Indeed. Instead, they have various kinds of filters to defeat BitTorrent, and their customer service is a mostly sorry joke. I think Comcast needs to read the subject line of this post, and then read the quoted comment above. Their theories for what counts as "internet service" are way, way more complex than they need to be.