I think I would have enjoyed talking with the good doctor in person. He seemed a pleasant, interesting, and well-read fellow. Aside from his obsession with poop.
Tim, however (and here I do what I said I would not) has a troubling resemblance to an IDW that finally learned how to spell. The same false-sounding folksiness, the arrogance preening and superciliousness, the obsession with (but not understanding of) the term "exponential." The profanity (which showed briefly at CosmoQuest, in a way that suggested it was being kept under tight control otherwise). Even specific phraseology.
I did not, however, find him interesting to argue with.