Waves to @GCAcademic - also a signatory & I think this is going to continue to grow - you don't have to be in this area of research to be part of the network. Though, having said that, the knock on effects are felt everywhere - I'm a computer scientist. How can you write a piece of software code to pull out the records of women / men in a certain age range for a specific set of tests if you can't identify who the female / male bodied people are?
There are people on the network who didn't feel able to sign this time, but the more of us speak out the easier it will get. I'm retired so they can't touch me, job wise. It's certainly going to sort out the VCs who are genuine academics from the ones who play to the crowd.