I do not believe "Ad Hominem" means what you seem to think it means. Furthermore I don't think anyone has ever won an argument by calling out the names of random logical fallacies. The purpose of them is you call them out, in your own head, to yourself. And then you use that information to explicitly examine and question the argument at hand. Oftentimes it is not necessary to point out any fallacy at all if the overall conclusion of the argument does not depend on the truth value of the fallacious statement- So the best strategy in argument then, is to first identify what that overall conclusion is, identify the premises that the conclusion depends on, discarding any premises that are irrelevant, and address those explicitly. To call out things like "strawman!" and "ad hominem" is to be pointlessly distracted, or, in a less charitable reading, a strategy intended to distract the reader, so you can avoid having to do all that hard work of addressing the person's actual argument. I believe in this case it is the latter, but I may give you the benefit of the doubt if you can come back and address the content of the argument instead of throwing a fit and refusing to negotiate with intellectual terrorists, as you have.