Twitter is kind of like going into a room and yelling something. Many statements will just be a single statement and that is it, not conversation. When a conversation does start you can click "expand conversation" and see it.
Twitter tends to be a bit too chaotic for my taste, which is why I rarely use it.
You are pretty much correct. He reads here, he fumes, and begins name calling. I just hope that he does not catch the wrong person on the wrong day. He has pretty much none of the privacy settings turned on for his social media accounts and it would take about 10 minutes to find him on any given day. Sooner or later his keyboard is going to write a check his body is going to have to cash.