Howdy! I'm Drew, and I'm the administrator and Game Master of a Socialist West-Marches DnD 3.5e Discord Server, the Axe and Sickle! The server is four months old, has 20+ active members (and triple that number of lurkers), and has hosted dozens of games.
Devastated by an unknown catastrophe centuries ago, the Ohm Basin is home to naught but monsters and outlaws. A retired adventurer from a foreign land has founded a town in the middle of it, and adventurers - such as yourselves - file into its tavern, the Axe and Sickle, to secure their own fortune! Plunge ancient depths to uncover lost secrets, thwart necromancers who build their strength away from civilization, and compete with fellow grave-robbers to loot forgotten tombs!
If you don't know what a West Marches Game is, it is a style of DnD game where, rather than a static party that meets regularly and follows the DM's campaign, the players themselves choose who to adventure with (and when to meet) for a single expedition before returning to town and disbanding. This is good for players with inconsistent schedules and interest, as it is an extremely low-commitment game. You don't need to set aside any time in your schedule for this game on a permanent basis; just pick a time and day that works for you, one session at a time. And if you have the energy for anywhere between two games a week to one game a month or even one game ever, you can be accommodated.
The only things required are a Discord account, a mic, and a Fantasy Grounds Unity Demo License or better (don't worry, it's free). Prior DnD experience is not; everyone is welcome. For now, all games are run in English.
If you have any other questions, feel free to ask. We're currently on the search for co-DMs to expand our "bandwidth" so to speak, so if this is something that interests you, let me know. To gain access to the full server, you'll have to make a character and get approval, which usually takes at least half an hour.
Most likely they're referring to /r/MensLib, which is the subreddit for the Mens' Liberation movement. Essentially it's "Mens' Rights but not just fashy whataboutism".
There are some legitimate complaints about how discourse on /r/MensLib can tend towards self-flagellative virtue signaling despite aiming to be a male-positive space. It is, on the whole, however, Cool and Good. Most people who complain about it are just incapable of understanding that the basis of male oppression is in the same toxic-masculine and patriarchal social norms that harm women.