Quite so. I nearly did a follow-up post yesterday withdrawing some of the irritability.
It’s a matter of nuance really, which is perhaps not all that important, but then again it does tend to be the oil that keeps conversation flowing. I’ve gone on thinking about it, and I really do think that when Y knows less about Topic A than X does, then Y’s disagreements with X’s claims about Topic A should be hedged, or tentative, or bashful (to say the same thing three different ways). I think that especially applies when Y’s disagreements include claims about X’s somewhat sinister motivations. That’s all. It’s not a huge big deal, but getting it wrong is almost guaranteed to make sparks fly.
I withdraw any sparks I may have flung about!