The number of Bernie supporters who say they won't vote for HRC must be devastating.

[Live and Learn]

159. +10,000 However according to Wikipedia, Third Way is quite acceptable here.

https://en.wikipedia.org/wiki/Democratic_Underground

Activism

DUers are active in U.S. politics in many ways. Many of them attend political protests and rallies, volunteer for campaigns, and write letters to editors of newspapers and members of Congress. Some are among the members of the Democratic Party infrastructure, serving as precinct chairs. Others actually work within the confines of various legislative and congressional bodies as staff. Many active posters at Democratic Underground have worked for various causes in both paid and unpaid positions, in campaigns and for special interest groups such as the AFL-CIO and SEIU. Others are members of the DLC, Progressive Democrats of America, MoveOn, and Democracy for America.
Owners

The website is owned by Democratic Underground, LLC (a limited liability company), and run by David Allen, who posts under the screen name "Skinner"[4] while on the boards and handles most of the issues relating to the forums. The other two administrators are Dave Allsopp, a co-founder, known as "EarlG" (of Washington, D.C.) and Brian Leitner, known as "elad" of Portland, Oregon. Allsopp and Leitner handle the articles and technical issues, respectively. Previously David Allen used to design websites for Blue Dogs/Third Way Democrats in Washington, D.C.