Ask HN: Why did phpBB forums go out of fashion?
I remember some such forums that were really popular and that provided a lot of value for some sub-communities. Nowadays, those needs seem to be mostly filled by Discord servers, Facebook groups and other walled-garden products. HN being a notable exception, but that seems to be running on its own stack.
My question is: is this just a matter of something going out of fashion (perhaps driven by monetization interests), or are there technical/UX/safety reasons why you'd recommend a different solution for a new community project in 2022?