I'm glad you raised this OP. I've seen a definite increase in men on here since January.
I think most of them come to have a look at what women are talking about and to get a different perspective on relationships. Some might be titellated by the sex threads. Others are here only fleetingly to get advice that's different than what they would get elsewhere online.
Even though some of them start off like this, a number of the can't resist wading into threads, especially dating ones, where they proceed to megaphone at women variations of #NOTALLMEN, or WOMEN DO THIS TOO!! Even when they're not this obvious, they often give themselves away in other ways, sooner or later.
Those types are very resentful that women are getting an undeserved slice of the sympathy pie, and will wade in to tell us why men deserve it more. This is sometimes extremely insensitive given the number of women on here who have been victims of domestic violence and subject to sexual depravity. They seemed genuinely peeved that women have a place to talk that is not yet totally dominated by men, so comment on here TO REMIND YOU THAT THERE IS A MAN ON THIS FORUM KEEPING AN EYE ON ALL YOU DISOBEDIENT WITCHES. Obviously, and thankfully, none of them are this brazen on here, but the objective is to shush women from sharing their experiences, to make sure they know that there is A MAN on here that disagrees with them.
Reddit seems to be quite bad, and despite the death threats and sexual harassment aimed at women on Twitter, you can get banned there as a woman if you say things that are seen as inconvenient, distasteful or offensive by trans activists, even if they're actually true.