Good points made there.  On the other hand, though, I'd contend that character limits can cause conversations to lose nuance.  Being able to spin off discussions on different entries in a thread has value, I can see, but I wonder what limiting ourselves only to bite-sized discussion points does to our mind.

There's a place for Twitter, and a place for other platforms as well. 

 Yes, someone mentioned highlights could be used to make comments on specific chunks of text

I really hope there's no more place for Twitter in this world 😂 

 if you viewed the thread as a chat spinoffs would be quoted replies