Ok, I'll bite.
I can't speak for every other man here, but I am just as, if not much more active on the other boards than on here, but as you can see I NC for in here. this is mainly because on my usual NN I have probably given away too much personal info, that a person who knew me could piece together. I don't really care, as its nothing I would not say in public anyway, and wouldn't deny it if asked. Here is a little more personal!
The forum is, as is often repeated on here "by parents for parents" and first and foremost, I am a parent. I have been here for years, seeking and giving advice on parenting, as well as chipping in on such boards as Films/Tv, Music, current affairs, DIY, although my knowledge on gardening and aquariums is a bit shit.
There are plenty of men on the other boards, but apart from when they announce "man here" or have an obviously male username, which I do neither, then its just not as obvious. In fact, I will happily donate £100 to a charity of your using if you happen to spot my usual NN!
I also happen to enjoy sex so also use this board. I agree there are some men that are on here getting their jollies, who are usually found out and fucked off fairly quickly. Believe it or not, and despite the nay-sayers, there are also some women who do the same too, but I accept that there are much less of them (and sometimes they are men pretending, but again, they usually get found out and seen off).
The men that are not total sleazes on here, generally get more acceptance here than on the main forums, but again, it can be contentious issue.
I actually thought the Q that started this thread, and the answers, was a decent and reasonable one but I don't really have experience on the position described so haven't chipped in until now - apologies OP for continuing with the diversion.
My wife knows I use MN, and gently takes the piss about chatting with "a load of women online", but isn't particularly interested in joining herself, although I have suggested it a few times and will show her the occasional thread, even some from here. She doesn't really do internet forums, or any social media and apart from the news and rightmove, and just doesn't have much interest in the internet in general.
Hope that answers the question from my POV, hopefully there will be some other answers forthcoming (hopefully in a way that doesn't continue to derail the thread)!
😁