You'll also find that users of the instance don't all run entirely free software and yet it's still a relevant place to congregate and discuss topics like "why

You'll also find that users of the instance don't all run entirely free software and yet it's still a relevant place to congregate and discuss topics like "why this open source project didn't work for me", "why this open source project was a great alternative to closed-source offerings" and all of the subtleties in-between. My experience of most of these conversations is that few people try to gatekeep or provide vapid criticism of people who aren't fanatical purists.