nah, people who know that cars kill a _whole_ bunch of people each year, and believe that car ownership should come with full responsibility by the owner when it comes to whether their computer-on-wheels is compromised or not are just as free to post to HN as people who think that that's not the car owner's responsibility. If you have car with remote shutoff/control, you owe it to both yourself and especially your family to stay up to date on news about that. The world's bigger than just the US, some countries place more value on personal responsibility than others.
so in your world anyone that uses anything which is connected to the internet (which is basically everything) needs to be a cybersecurity engineer? :)
my dad (and most dads) will be pissed he can’t drive his EV or anything of the tech gadgets he likes cause he’s not technically qualified for ownership and responsibilities that comes with it…? that sounds reasonable :)
in this world I would say the very least business could do is put up a disclaimer on the product “requires PhD from Carnegie Melon to own”