My inclination when people feel insulted is generally to apologize, but I've re-read my comment twice, and I cannot apologize because I am not contrite. I neither put words in your mouth nor insulted you. You can choose to feel insulted regardless, like you could choose to feel insulted if a teacher said "Nope, there is in fact no carbon in a water molecule -- here's some resources or talk to a chemist and they'll set you straight", but that is entirely under your control. Prior to deciding to become insulted, I might suggest pondering "Do I want to commit to routinely being unhappy when soliciting information about subjects I purport to care about from people who know more about them than I do?"