With the recent issues of Tea (teaforwomen.com) posting unsecured user data, it's easy to spot the heavy bias of male users in the comments. With a 90% male demographic, Lemmy will face problems related to a homogeneous user population and all the issues that come with it. Right now, it's shaping up to be misogynistic, but it could also head into other bad places. Lemmy needs to attract a more diverse population of users or will end up as another echo chamber for the like minded. https://www.similarweb.com/website/lemmy.ml/#demographics
If you think about it, it kinda makes sense. The fediverse is not a safe place for women especially not the average normie women, due to the fediverse's very public nature of things and general inability to really delete anything.
Reddit can detect and deal with stalkers, you can make your profile more private. Lemmy can't do a whole lot when every instance is firehosing all the data in realtime to everyone's servers. It's a scary amount of data I have in my local Postgres database: everyone's every vote, comments, tied to a profile, with accurate timestamps and all.
If they use an instance without the image proxying, I can also potentially trick them into loading an image from my server and collect IP addresses and correlate to a user via vote timing, and then use GeoIP to get a location.
Lemmy's also very appealing to those that can't stop getting themselves banned from elsewhere as some instances are very friendly to unlimited free speech and gross behaviour. I don't have data to back this claim, but I feel like there's definitely a correlation with those kinds of people and women not feeling safe around them.