Ann Bartow is totally off base.
This discussion reminded me of this old post about message boards that try to exclude specific populations from certain fora, even for browsing, while refusing to implement technological solutions to enforce their rules. Is it "bullying" to lurk in a WOC-only thread? It's hard to say that someone's bullying you if the whole point is that you don't know you're being injured.
UPDATE: A nuanced, charitable exploration of these issues.