Your opinion is not "a gentle reminder", "a friendly reminder" or "a public service announcement". It's just your opinion and nothing more.
It's obvious you don't understand what is written in those links. The capability security architecture breaks the false dichotomy of either having to have a fully locked down or open operating system, it provides the technical foundation to grant individual programs, and even parts of these programs, recursively, only the (data, filesystem, network) access and resource consumption (cpu, memory) rights that they need. This is not an opinion, this is a decades old technical solution that humanity ignores at its own peril. While I wouldn't argue that it completely solves computer security, it allows programmers and users to minimize the attack surface of their systems.
Ok, so I've trigged quite a reaction with my phrasing. I'm very sorry about that.
Put yourself in my place... Computer Security is a solved problem, and has been for decades, yet we find ourselves in an infinite loop of crises that result in ignorance of solutions. Maybe 5% of all discourse here on HN is about a problem we don't have to have.
How would you push the world to resolution?