> You're going to spend all that work using "the author" everywhere and still manage to get my gender wrong ("his")?

As you notice, the poster to whom you are replying clearly goes to a lot of effort to say "the author" repeatedly, rather than 'he' or 'she'. I think that it's fair to assume that one slip-up after such work is a result of innocent inattention rather than a perpetuation of gender biases.