"Turned out that the author behind said list wasn't satisfied in the way GoDaddy addressed his complaints towards a single allegedly spamming server and as such decided to put the whole netblock into the list. Even though said servers all use static IP addresses."
That's exactly the idea behind a blocklist. That's how it's supposed to work. ISP doesn't handle spam (or phishing or malware or some other network abuse) in a responsible way; blocklist puts pressure on the entire ISP. Customers of the ISP have a choice: stay or move. If they want reliable service, they move to a more responsible and proactive ISP.
It's capitalism in action. And like much about capitalism in action, the consumers get caught in the crossfire. :)
So, yes, how it's supposed to work. Now, before people get upset and start flaming me, I'm not offering an opinion over whether the idea is a GOOD one; I'm simply explaining that that is, in fact the idea.
And, honestly, I can sympathize with it. Abuse teams are the redheaded stepchild of any ISP. They don't make money for their company; they LOSe money. Almost all ISPs would be happy to allow spam, malware, and phish sites on their networks; after all, it costs money to shut them down. Often, it is only fear of blocklists that prompts ISPs to take action.
Seriously. I deal with ISP abuse teams on almost a daily basis. I've dealt with ISPs--and I don't mean little fly-by-night reselling companies, I mean huge, high-profile ISPs in the US and UK--who have told me directly "We know this is a compromised site hosting malware and PayPal phish pages. That's the Webmaster's problem, not ours." I've had ISP admins tell me point-blank that they won't deal with a spammer unless he does come to the attention of a blocklist.
And those don't even consider the hosting companies who adopt a strategy of deliberate incompetence in order to keep their abuse people from losing them money--for a particularly annoying example involving Earthlink, visit my blog at http://tacit.livejournal.com/359564.html for a transcript of an attempt to get them to shut down a phish.
So it's no wonder to me that blocklist operators are willing to put pressure on entire ISPs and their customers in order to try to get them to clean up. Annoying? Sure. High-handed? Maybe. Does it catch innocent third parties in the crossfire? Sometimes. Is there any other way to get ISPs to take action against abusers? Not as far as I can tell. f anyone else has any ideas, I'm sure the entire Internet community would love to hear them.