If you look at the whole post, not just the screen shot you copied, you will notice that the first part is a reply to @Ledwidge .
There is a line drawn, before I start a new section with @robroy.
It might not show on a phone? I guess that would explain any ambiguity? But is there on the desktop version which I wrote on.
The line might not be clear, and it might have been better if I could have written several posts to each of those I was responding to, but the site prefers a single reply to multiple posts. But, there it is.