The questions get brushed off because most of the public is still afraid of the technology (see this thread. I doubt many of HN users has worked anywhere related to this field, but look at how many have strong opinions).
This is not a good basis from which to make an argument and it actively undermines the process of effective public discourse.
I am trying to be helpful here. I am sure you won't see it that way because it is public and it is critical of your remarks and that won't feel very good. But, maybe you could be the one in a million people who decides to use that fact as evidence of the truth in my statements that attacking other people doesn't strengthen your argument instead of being one of the other 999,999 people who just insist what I say is irrelevant because it hurt your feelings, while failing to see the irony there.