The Pink Flamingo has come under fire by folks claiming that the only theme is "guilt by association" - and thus try to dismiss the concerns by claiming it is a logical fallacy. I reject that defense.
The company a person keeps says a lot about them - and a lot about their arguments. If the only folks willing to back a piece of legislation were the Mafia, would you really want that legislation to become law? I wouldn't.
I think that checking up on people or entities you associate with (particularly when promoting an issue or any sort of business/employment association) is just something a responsible person does. I'd want to know who I was getting involved with on that level - particularly to avoid being embarrassed by what would come out. In the Age of Google, this is very easy - in a matter of seconds, you can get the information. It's not that hard. There is really no excuse for not doing so, particularly when you are discussing a controversial issue.
Yet, for some reason, people like Tom Tancredo and Michelle Malkin are getting a pass for associations with shady people - people whose shady backgrounds are easily discovered with a little searching, as the Pink Flamingo blog has done. This is not right, and the fact that people do not try to explain this, but instead attack those of us who raise questions about what is an apparent lack of judgment, speaks volumes. Shooting the messenger is the last resort of a person who wishes to avoid dealing with inconvenient facts.