I'm sure this has been mentioned but Zoe Williams has done a piece on John McConnell's Mumsnet chat. She mentions the trans issue in passing.
Comments are open. And one says "what is it with Mumsnet and transphobia anyway?"
I'll see if I can link...
What is it with Mumsnet and transphobia, anyway?" discussion.theguardian.com/comment-permalink/120570800
Maybe we should tell them??