Sorry you're so offended by my personal conclusion. You're welcome to do whatever you please. I guess I don't deserve the same in return.Ah, well, in your case, it probably makes sense to not even dock the boat in marinas or even tie up in anchorages where someone upwind of you might be using one of these. In case an inert molecule hit your boat.
Perhaps you could consider getting a hotter grill, so that you COULD get it hot enough to degrade, and thus supporting your position.
To be clear, the off gassed compounds from over heated teflon are not inert.
I have a Dickinson Sea-B-Que. They can get pretty hot, as they should for proper grilling. But I think it's not the grill itself that matters, but how much heat builds between the flame and this cooking surface, especially if the cook pad acts as a cover over the flame, like a lid. Propane flame is about 2,800c or 5,000f, so it's just a question of how fast it cools in those few inches. Maybe a good practice would be to not cover the entire grill surface. Still, I'm not going to wonder how hot it is each time I use it.