In any case, some of these questions are tedious and uninteresting, but some are not, and calling them dumb seems to be just a way of persuading others not to discuss them.
For example, I think active population control is one of those unaskable questions that should be discussed more. Even the crude, corruption-prone way in which the one-child policy was implemented in China seemed to have helped the nation modernize. Here in America, having children out of wedlock is linked to poverty, and our foster care system is a wreck, but we somehow don't care to entertain even the search for humane and effective policies along the lines of population control. No doubt this is because history is filled with cruel and paternalistic implementations, but this would seem to be exactly the baffle in the free flow of ideas.
What makes you think they get asked all the time?
AI rights? Yeah, save my Roomba.
Free will/rationalizations? Let's just assume that nobody has a choice in anything. Where's that lead us then? Nihilism? Dude, how exhausting would THAT be?
Not bad, but I'd prefer a verb form -- to romple?
"Dude, you're rompling. Stop it."
In this case, these questions aren't really "questions you can't ask". It's true that people are a little over-touchy on a few of them, but most of them are just fairly dull questions which are rarely asked because either:
(a) They're dumb suggestions (active population control, abolishing corporations)
(b) They're based on false assumptions (e.g. people are "anti-sex", whatever that means), or
(c) We're sick of the question already
A couple of the others (rights of AI, why people make decisions subconciously and then make rationalizations) are questions which get asked all the time.