For those of your IRC'ers out there, my ISP (pacbell.net) is K-Line'd on several of the dalnet servers. Basically, that means any connection attempt from the pacbell.net domain is blocked. This has caused no end of annoyances for me.
First I emailed the various dalnet servers and they said that pacbell.net is the source of many winsock proxies (banned by most dalnet servers). Very similar to an open email gateway. They said contact my ISP.
I email my ISP. Pacific Bell is a huge, no, HUGE telephone utility company on the west coast US. I split a DSL line from them with my neighbor (shhhhhh!). They respond back with an automated email saying that someone will look into the matter. That's it. I could push them further, but I doubt that I will change their policy.
As for voting with my money, hah! In this area, DSL runs about $50 / month. That's assuming the hookup will work. I have my own DSL horror stories. I've tried their competitors. Pacbell is the only one that just worked. Since my computer doesn't like modems (long story), I'm stuck with Pacbell. For $20 / month, I'm willing to live with being kicked off about half of the dalnet servers.