I'm starting to read ideas about using to manage on the fediverse. I'm pessimistic so far, although I could be surprised.
Specifically, I think OCaps will be effective at stopping people from punching down, but will also prevent spontaneous connections and stop people from punching up. That would be fine for a Facebook replacement, but not a Twitter replacement.
I'm aware not everyone wants a Twitter replacement, but I'll still be on the network that is one.
I'm also a bit hesitant on the impact, but there were some cool ideas that were suggested when I originally heard about the problem and how they were thinking about solving it.
This was a big topic of discussion at activitypub conference in 2019. Here was one of the better talks on the topic that may be useful to look into