Web logs had a characteristic where you kinda had to put a bit of elbow grease into seeking out replies, and that isn't all bad. There are plenty of instances in the old web log communities of some monomaniacal troll paralleling some bigger blog's every post with their inane (if not "insane" as my swipe keyboard started with) replies, but mostly nobody has to care. You visit the original web blog and you don't have to see it under every post. Even the original author can pretty much just get on with life without having to worry about it. This is not something "conventional" social media does well.
I remain unconvinced that the model of pushing replies into everyone's face, bundled with the original content, is the best or only model for social media. It's probably a nontrivial part of the reason everything seems so homogenous nowadays... it really is. The same regress-to-the-mean in every "social" interaction because it's the same regress-to-the-mean people and patterns in every single one. Give people a place to be themselves without a hundred people tromping in and you get those unique voices back.