I tend to (maybe unjustly) associate the Reddit community as being the Gamergate community.
I think Ellen Pao may immediately conjure up a perceived connection with the SJW scene, especially after her lawsuit. If I had to guess, that's probably where a lot of the hate is derived from.
No, the hate comes from a frivolous lawsuit, terrible policies, terrible management and overall terrible CEO. None of that has anything to do it with video games, SJW or her being a woman.
I think Ellen Pao may immediately conjure up a perceived connection with the SJW scene, especially after her lawsuit. If I had to guess, that's probably where a lot of the hate is derived from.