It's very much not an obvious pattern to people who haven't blogged or don't read blogs.

I also thought this and didn’t get the point. But the link was published 2013 and maybe for users not used to personal blogs but only social media nowadays it’s worth mentioning…

People spend immense amounts of time writing intricate comments and guides on Meta platforms and nowhere else.

They wouldn't even need to host them anywhere, just have the same text on a device they own and control.

So fucking much is lost when a FB group just suddenly disappears along with all of the time people have spent writing on them.