UPDATE: I’ve sent this letter:
I’m one of the bloggers at Feminist Philosophers, and I’m writing to let you know that your conference has been added to our Gendered Conference Campaign. Here’s a little bit of information about the campaign: “The Gendered Conference Campaign aims to raise awareness of the prevalence of all-male conferences (and volumes, and summer schools), of the harm that they do. We make no claims whatsoever about the causes of such conferences: our focus is on their existence and effects. We are therefore not in the business of blaming conference organisers, and not interested (here, anyway) in discussions of blameworthiness. Instead, we are interested in drawing attention to this systematic phenomenon.”
I’d like to emphasise once again that we are making no claims about how your conference came to have an all-male list of invited speakers. We are not blaming you for this. We’re interested in it simply as part of a widespread, systematic phenomenon with bad effects.