You couldn't just look at the picture to see who to give credit to? @lanaflowerz is written right there in the bottom right and they have an account on Instagram at least
I felt like I've seen a couple. But yea, I have not seen nearly as much as on reddit. I think there are some fediverse rules that keeps bad things out (Nazis, pedos, misogyny, etc.) (I also don't fully understand the fediverse as well)
I keep luring them out by accident just by bringing up any kind of women's issue at all. Thankfully though, a quick report and they get banned from my instance real fast.
It's likely due to age. Based on the comments and posts here, it seems that most people here are older than those on Reddit. As the saying goes, "with age comes wisdom."