There are male posters who have been on MN for years and years - many of whom don't broadcast that they are male, because it seems kind of irrelevant for the vast majority of topics.
Then, a newbie female poster comes along to join (great, welcome!); but she sees the word 'mum' in the name, without troubling herself to check out any context or understandings in the community that she has just joined, preferring to just make assumptions and insist that she is right.
So she starts the 353,293,021st thread asking "Why are there men on MN? I know I've only just joined, but I don't like them on here, so they all need to be booted off, as it's MY site now and not theirs any longer".
And then, irony of ironies, the men are blamed for invading somebody else's space and trying to dominate!!! Imagine the arrogance of ignoring the clear, oft-repeated guidance from the site owners as to who is welcome to use their site, and trying to bulldoze them and telling them that they are wrong!
Yes, there are lots of pervy and pathetic men, just like there are a lot of very unpleasant female posters. The majority of posters are decent, and the organically female-dominated demographic makes for a truly wonderful knowledgeable, engaging, helpful site that naturally excludes a lot of 'blokey' testosterone-fuelled topics.
Honestly, the majority of topics on here are not female-specific anyway. Yet you somehow get people accusing male posters of being trolls, perverts, aggressors etc. - just by dint of being male - for wanting to participate in an exciting parking thread, discuss holiday options, grumble about sky-high energy prices, enjoy sharing photos of cute kittens, get and give gardening tips... not to mention all of the actual parenting topics that equally affect dads (well, not the boorish ones who just don't care and leave 'the little woman' to do all the boring kid stuff whilst they play golf every evening - maybe they're the better ones?).
Just remember the golden rule: you can ALWAYS spot a male poster a mile off... except for all of the many, many times when you can't.