I don’t know about the particular claim about the new account — if true, based on what people have said, this would be consistent with an LLM bot with high probability … (but not completely out of the question for a person) … I’ll leave that analysis up to the moderators who have a better statistical understanding of server logs, etc.

That said, as a general point, it’s reasonable to make scoped comments in the corresponding parts of the conversation tree. (Is that what happened here?)

About me: I try to pay attention to social conventions, but I rarely consider technology offered to me as some sort of intrinsically correct norm; I tend to view it as some minimally acceptable technological solution that is easy enough to build and attracts a lowest common denominator of traction. But most forums I see tend to pay little attention to broader human patterns around communication; generally speaking, it seems to me that social technology tends to expect people to conform to it rather than the other way around. I think it’s fair to say that the history of online communication has demonstrated a tendency of people to find workarounds to the limitations offered them. (Using punctuation for facial expressions comes to mind.)

One might claim such workarounds are a feature rather than a bug. Maybe sometimes? But I think you’d have to dig into the history more and go case by case. I tend to think of features as conscious choices not lucky accidents.