While I realise this is a sensitive issue and I hope the author is ok, one thing I noticed is the implication that this is a thing that happens at tech conferences. I would just like to make sure we are not dissuading women from coming to tech conferences by gaining some sort of reputation here.
Most people in the world are good but unfortunately this kind of thing happens and when it does we have to show it will not be tolerated and will be properly dealt with.