It's only ad hominem if it's used as support for an argument not directly related to the other's personality. It's not ad hominem in this case, because "you're entitled" is being used to support the claim, or as a parallel claim, that it's unreasonable to be insulted by a computer program thinking you're another computer program.

Claim: Turing was wrong about the Church-Turing Thesis because he was a homosexual -> ad hominem

Claim: Turing was immoral because he was a homosexual -> not ad hominem (although still not a good argument)