There was something familiar about 'whitebar' and I think Set nailed it. It could very well be the creature who sometimes appears as nononono or Buttermilk. The poster using whitebar poses as the poster girl of radical feminists, seeing offense where there is none. Earlier someone pegged whitebar as a man posing as a women. Thats starting to sound like a good call. Its a little difficult to determine exactly what gender is posting, but its definitely an angry one. Whitebar is the quintessential angry female persona that anti-feminists warn people about. Shrill, irrational, chip on shoulder, pretends all men are brutes because thats what he believes women are like.
And, similarly, nononono is the quintessential hyper bitter men's rights advocate--the angry male persona who resents all societal strides women have made in the past several decades and their continually increasing political power--"he's shrill, irrational, chip on shoulder", pretends all women who don't agree with him are "radical feminists" or "feminazis" because he really doesn't understand women, and consequently irrationally fears and dislikes them and their motives.
So what really connects whitebars and nononono is their nastiness and irrational anger, and the vulgarity and insults that flow from both of these personas--constantly telling other posters to "**** off!" and scattering gratuitous juvenile insults rather than substantive ideas, and engaging in one-sided rants rather than meaningful interchanges and discussions.
What really connects whitebars and nononono, and suggests they are one and the same, is the similarity in their patterns--whether claiming to be male or female, or pro or anti feminist, it's the same nasty little troll, bubbling over with irrational anger and resentment, and using A2K as a place to regurgitate it. And, unfortunately, all that regurgitation creates a stench, and it drives intelligent thinking posters away from A2K, to FB or elsewhere where the air is less polluted.
I can't think of any reason to make such a nasty little troll feel welcome here. Setanta has the right approach to dealing with "it".