A botnet can be run by a single person, though; how does DDoSing say that a lot of people are upset when just a few people with a lot of bots can perform the act?
Apologies. In the CNN article now posted on Hacker News, http://www.economist.com/blogs/babbage/2010/12/more_wikileak... , the Low Orbit Ion Canon is volunteer. It would seem that there are that many who are agreeing with the assault, or at least not removing their agreement with Anonymous' general decisions.