About 20 or 25 years ago (I think it was around 1997), I even got a reply from Richard Carrier himself in his Internet Infidels site. I hadn't heard of him at the time, but in retrospect, I think it's interesting to have gotten a reply from someone so notable. I can't find it now, but it was about free will; I pointed out the inconsistency between determinism and free will, and his reply was basically that he was a compatibilist and that the ability to have chosen otherwise isn't a requirement for free will.