You are worrying about the wrong thing. I don't know what that guy's
problem is, but in a scientific debate, you make your case, you don't
say that you "don't know what to do to begin to address it" or
whatever. That is the silliest thing I've ever heard an "expert" say,
and that's saying something. And I'm not the first to say what I've
said. I've cited scientific papers on this NG over and over again.
Just go do a search for montygram and you'll see.