A bit off topic, but I simply thing this is the commenter trying to be grammatically correct without using "him" as is standard in English. I've noticed quite a few writers lately (especially in tech) doing this more often. I seemed to remember RMS doing this in a recent post of his, using feminine pronouns as the generic singular 3rd person.

In the absence of a third person, singular pronoun of ambiguous gender in English, I prefer to use "her" as it makes a nice change from the standard use of the masculine pronoun that is all too common.

Read into that what you will, but perhaps you're just trying too hard to take offence.