We know that for a very long time, Atrios posted anonymously because of concerns that his name being common knowledge would result in him losing his job.
Of course, his situation has changed, and we now who he is.
If you don't know, then you have a life, congratulations.
I believe that Zephyr Teachout also posts anonymously, at least I don't know who she is. (I imagine her to be a multiply pierced sort with orange hair)
There is a part of me that wants her identity outed, not to the general public, but to the political operatives who hire consultants like her.
I get the sense is that this is a completely self absorbed person, and I wouldn't want her to work on any campaign for a Democrat (Zell Miller excepted).
After the Dukkakis campaign, Estrich became unemployable, and to the degree that she never managed a campaign again, this was a positive.
I'm thinking that Zephyr should be in the same boat.