Oh please. It's mumsnet. Of course it was created with women (mums=women) in mind. There's plenty of us who would rather not have men here, and I would question the motives of any man who seesmumsnet and thinks "that's the site for me". At best they're relying on women for emotional labour, at worst they're here to stir shit up. Won't convince me otherwise.
This has come up time and time again. Mumsnet has massively outgrown its original narrow parenting remit and is now one of the most lively online forums that covers the whole range of human existence, including parenting. It even has a dedicated section for those who are TTC - many of whom are obviously not (yet) mums.
You can Google almost anything and MN will very frequently be one of the top hits. I've accidentally ended up on countless other forums before (haven't stuck around, because they're nowhere near as good as MN) when I've had an issue or sought information about something and it's on that particular forum that (my search engine tells me) they are covering that particular topic.
Parking and neighbour disputes, dog walking, opinions about TV programmes, rising prices at Aldi, weird things you find in your hedge, how to get a deep-set stain out of a sofa cushion, employee rights, holiday accommodation and travel, gardening, wallpapering, cooking... these and endless other topics are regularly covered on here, none of them requiring people to be a mum/woman/parent to show an interest in.
Do you believe that all the women on MN are also relying on other women for emotional labour or trying to stir shit up? A small proportion of both sexes come on to MN (like all non-private online forums) to do this - and when they do, they are reported, deleted and sent packing, as well they deserve.