Read it again: it's not dismissive (the original version was scathing: what I eventually posted was carefully couched in neutral and factual language). People carefully engaging with you and saying "look at it like this and it might appear obvious..."
The fact that yes, if you can't argue with what it contains then it will lead to the idea being dismissed is unavoidable. But it wasn't dismissive in the way that you, for instance, posting that MarcusIII's entirely sensible and mainstream opinion was dismissed by you as him "marching to the beat of his own drum."
As regards the fact that the thread repeatedly devolves into theorycrafting and amateur game design propositions: yes, I agree, and you can see the effects in the Mongoose employee posting that he hasn't bothered to read it all: it has ceased to be useful in those terms.