For a second be Riot's lawyer!
I have to say that i think this hysteria about sexism etc is a bit overrated. Riot made a big mistake but NOT because they wanted to hurt anyone or because they wanted to be sexist.
They tried to prove that they are NOT that... and they just wanted to be correct... in a weird and awkward way. This happens when people are forced to be "politically-correct" just because some (...i can't call them on their names because then my post will be deleted...) by mad and hurt people. They made a mistake but they were in a really bad situation and they thought that they have to solve this by open up into... another community. Their message wouldn't be the discrimination of men. Not at all.
Also about Daniel, the rioter: well, i will never understand his view and i think that he is one of the "i can't call them" community. But his words are NOT RIOT'S WORD! Those are his own thoughts with his own resposibility. Forgive Riot the PAX, move on and let them be. There should be a huge pressure on them because of pc-communities and in these situations almost impossible to do something what is OK for everyone.
For Riot: Next time you write "Everyone is welcome here" to every events, rooms or whatever. This should work i think.
(sorry for my english, i'm hungarian)