[remram]

Your steps 2&3 require a lot of people to put in work for free to solve someone else's problem.

[wizzwizz4]

But they're not arbitrarily-selected people: they're network administrators. Somebody spoofing IP addresses to the point of abuse reports is practically a personal insult to some of them. (Obligatory: https://xkcd.com/705/)

[remram]

Abuse reports that are not directed at them...