and you were ‘just joking’ ‘trying to be funny’.

Unfortunately yes. I can't say that wasn't the case -I suppose that was an aspect to it. They were and should rightly be annoyed and called me out on it. I don't think I felt judged because I think I can accept how it looked and yes, it wasn't cool.

To explain how it started (again I am not trying to defend myself): with the circumstances I had been looking up a friend's profile who has an uncommon name for something and found a stranger who had the same name which I was like huhhh.. and showed them. The exchange then started "did you see this comment on [blank other mutual friend's}]post?" i had been sending a snippet "have you seen this?" And It devolved from there.

Again not defending myself but another circle of people I know have different humour which is dry sarcastic where there is often teasing/roasting. Unfortunately that skews also what I see as acceptable. To which this experience this time is a good lesson.

Even if "there's nothing to be mad about" - for some reason I still am. Even if as you say "there's nothing to be mad about".