[masklinn]

> The person who corrected the original commenter seems to recognized that "he" was being used in a gender-neutral way

No, the person who corrected the original comment (that would be me) assumed the comment's writer (that would be you) had gotten TFA's gender wrong.

Hence 1. providing the author's correct gender, and 2. noting that gender-agnostic comments avoid this sort of issues when gender isn't specifically required for understanding.

> most likely as gender-neutral "he" is offensive to some.

No, because "he" isn't any more gender-neutral than "she" and may be a mistake of the commenter with respect to the author's gender. Following which you decided to blow a gasket.

> That gender-neutral "they" was suggested as a suitable replacement here, I don't think that is the case.

You think wrong.