At least one of the names on the list seems very plausibly wrong:

http://www.dailykos.com/story/2015/11/02/1443561/-Knoxville-...

The only possible way to verify anything is for someone to admit their membership in the KKK. Denial is confession in the eyes of many people, where politicians are concerned.

It plays on populist cynicism in a way that kind of makes it the ultimate form of blackmail or political slander. Anonymous can drop dox on any politician and the worse the accusations are, the more likely it is people will believe them.

And of course, "Anonymous" would never be affiliated with any political party or campaign...

True. It could simply be a list of people that some fraction of those hitching their horse to the "Anonymous" moniker believe deserve to be dragged through the media based on some perceived prejudice.

Still - I thought it was interesting.