The comment says: Having the assigned gender doesn't add anything and is mildly offensive. Many trans consider themselves to have always been their gender.
I made the original comment ("about him") to specifically make sure one would not hurt the person. During the whole post, I only suggest to respect the person, and I call her, well.., her... or she. To me, it's completely clear the question is about a woman (let's call her "Alice"), OP is clear about that.
So, to keep respect going all the way up, it's much more than important to NOT mention anything about Alice before she transitioned. That's my advice to OP. Like saying: "you remember when we were playing football? You were the best QB I had ever seen!" Really?! Unless there was a mixed team where Women and Men could play together, it's not only [ awkward / clumsy ], but, IMHO, rude (stupid?).
To me, OP should not say anything about Alice, and stay neutral, so that she can bring things up, the way she wants. You listen, she decides. And don't bring on the table topics she doesn't want to talk about. That's the way respect works in my little world :)
"Many trans consider themselves to have always been their gender." => so, what's the point of not warning OP about a possible misstep? Talking about her not being her would definately be a big hurtful blunder IMO.
I wonder if I should have been more clear in my answer, or if I should do it now. I'm just thinking about deleting it. To be completely clear and honest, this approved edit makes me feel disavowed... And feel like, when saying be nice, you're answered you, idiot. I won't roll back what I think is close to being vandalism, because I don't want to hurt anyone (warning OP about the risk of mentioning assigned gender mildly offensive?! really?!) That was exactly the opposite view I wanted to convey.
In this case, shouldn't a comment be exactly what it's supposed to be, asking for clarification, be the first step?
I'll respect the decision our community will have on this case (keep edit / rollback / clarification / delete). I'm just asking your POV's. Thanks.