Zephyr Teachout was certainly not good for Markos lately (though we won't discuss the merits of that case here). But she was good for Daily Kos.
It seems to me that Joe Trippi's (timely or untimely depending on how you look at it)endorsement of Simon Rosenberg for Chair and Zephyr's "blogger ethics" controversy has done some considerable good for this site. It has finally got people away from debating "fraud in Ohio! [...]Bev's latest [...]." Now these current debates haven't been the most progressively productive (a lot of name calling has certainly) occured. But they should pass in a couple of days and then we will be able to get back to work on being informed and planning out ideas for grassroots action.