Ultimately the tech is only as good as the humans that use it. If you're chatting with folks that can't understand the difference between a thread or not, that's a meat-bag issue and not anything an RFC can fix.
- opening threads in a new window is in some hard to find and hard to remember location
- threads can’t be inlined (like you’ve described). I actually like how they’re in a pane to the right but sometimes that causes issues (as you’ve described). Sometimes it’s just that the view is too narrow.
- there’s no way to shift non-threaded comments into the thread. I’ve lost count of the number of times conversations have happened over multiple threads and/or non-threaded replies.
The way they implemented it is a complete clusterfuck.