Please accept my humble apology for offending you and any others with my sincere attempt at being truthful. It was not my intent in the least to evoke your ad hominem. I do appreciate that you recognized and acknowledge my argument as sound despite unfortunate self-righteousness of which I admit I was unaware. If you could see yourself to overlooking my error, I will endeavor to be more careful next time.

Observing that your original post came across as excessively sanctimonious is an ad hominem?

Unless it spoke only to my argument and not towards me personally, then by definition, yes. But I can take it, I'm made of sterner stuff, so no harm done.