I don’t think you understand how deep the Apple secrecy/paranoia culture rabbit hole goes.
Another example: Have you ever noticed how comparatively infrequently Apple is even mentioned in FAANG working condition threads?
Source: I am a former Apple employee.
It's likely a throwaway account and I understand the reasoning behind creating one. Apple has a very secretive, almost paranoid, workplace culture. If I were in the parent poster's shoes I'd make one too to avoid blowback.
Most people "in tech" don't even know Hacker News exists. It's a bubble within a bubble.
lol having a HN account isn't a pre-requisite to being in tech