Ugh, just admit it if you did it, or say nothing. This post I'm responding to comes across badly. I'm sure no unaffiliated-with-you vote fraud bots were swarming to upvote your particular random article, so common sense says there's about a 99.9% chance if there was HN vote fraud, it was the person who stands to gain from the fraud doing it.
I doubt dang is going to walk you through how they detected it either. No need to make people's fraud easier in the future.
Just take your licks and move on.