Different people saying interesting things, but because those multiple conversations are on different platforms? Never the two shall meet. And, conversation on social media fades away as the news feeds change. It’s always been a frustration of mine that this happens.
Admittedly, some of the social features of some comment systems that adjust the order of the comments according to votes by readers can be confusing, as they aren’t a threaded in-order conversation. While that technique helps commenters police out bad comments (in theory) it does add to confusion, too. But, at least all of the discussion is in one place.