Talking about it helps promote awareness. Also, talking about it can (but does not automatically) promote ideas about how to effectively move forward so that those people who wish to do so can act on it. She makes an excellent point that people who really care about promoting women in tech should just hire her to talk on whatever she normally talks about at tech conferences. In some sense, hiring women to only talk about "women in tech" is keeping them in a pink collar ghetto. It sort of assumes she has no real expertise to offer that would matter to REAL tech folks: You know, successful MEN. (Basically.)