Not sure exactly how the lemmy.ca community came to be but I suppose it’s a continuation of the subreddit, vox has the original story in form of an interview:

I had gotten really into observing the online gender wars. It was entertaining for a while, and then it started to get pretty depressing. You had people on both sides of these issues who are passionate about the parts that they care about — but what they’re really passionate about is arguing, and making the other side look bad.

After a while, I realized that I either needed to stop observing it or I needed to try to help fix it. So I started thinking that what we needed was an actual solutions- and positivity-focused men’s group, where we could talk about these issues that are so important but ditch some of the bad habits of what we’ve seen before.