Kentac is confusing liberal Republicans with Kennedy's democrat party when it comes to comparing it to a progressive democrat.
The site is called democrat underground, not progressive underground. Democrats in the vein of Zell Miller, and there are some that post at DU, are labeled conservatives because they don't bow down to Karl Marx.
Skimmer was correct in developing a place where the insanest of the insane can be herded into a central spot, keeping them from causing damage to the outside world. Progressives at DU live in a fishbowl. They are such a large majority at DU that they believe that is a true representation of the general population as a whole, when in fact, progressives are a small minority of the democrat party make-up.