Somehow Brianna Wu knew she was being doxxed 6 minutes before chatterwhiteman!
https://twitter.com/FartToContinue/status/520733651139833856
There's also a lot of talk that this throwaway twitter account (it was created specifically for this sequence of threats, and was deleted immediately after by twitter) may have been held by
the same guy who's apparently done it twice before. Notice also there's no reference to #gamergate in the thread, and even if there was, there's no way to tell this wasn't an anti-GGer doing a sockpuppet routine.
It's all completely anonymous, with no way to tell who's actually doing it, why, what they support, or where they get their info or what they actually do with it.