People connected to "HN Bubble" controls hundreds of millions if not a few billions of dollars.
Not every of those dollars are liquid, far from that, but, in addition to the raw monetary value of certain people here HN also commands a lot of attention.
You keep saying this as if it was somehow true or relevant. At this stage, we have no real need for an OS that grandma will want to use. That can come later. She can stay on iOS/Android for the time being.
We need a name for this, the classic "someones parents can't use it and therefore it can't work fallacy".
My parents don't use Mac.
In fact most people don't, including me.
Doesn't prevent Mac from being a huge success and a viable platform for developers.
Same with a good number of applications: A few hundred or thousand hard core users. Bonus if one of them is an oil giant, a defense giant, the armed forces of a wealthy country or something.