Can someone provide links to the trolling and the careless and ignorant comments and the accusations of sexism and racism that you're all talking about? The wo

Can someone provide links to the trolling and the careless and ignorant comments and the accusations of sexism and racism that you're all talking about? The worst I could find was this from Josh Susser that apparently started the ball rolling: "Nice speaker lineup for @BritRuby. Except for the 100% white guys part." Did pointing this out drive sponsors away? Or were there some stronger statements I missed? I saw many tweets offering helpful advice on diversity to the organizers. I saw a lot of discussion about whether and how it is possible or desirable to have a diverse set of speakers. I still haven't seen any accusations of sexism or racism but I have seen a lot of complaints about those accusations which I can't find. Can someone provide links to the accusations?