There was no "mockery", just criticism and disagreement. It's rather disturbing that you saying that criticism and disagreement is "not acceptable" has been positively received. And estimator didn't say that the argument is closed, only that zie has a solid opinion about it.
He didn't bother with a serious argument, only an appeal to "causality." I don't go around posting my opinions on random threads unless I really can improve the discussion.
A self-modifying AI is built to serve humanity. The builders know, of course, that this is much riskier than it seems, because its success would render their own observations extremely rare. To solve the problem, they direct the AI to create billions of simulated humanities in the hope that this will serve as a Schelling point to them, and make their own universe almost certainly simulated.
Plausible?