People on here think he's a demigod, and most of the world shouldn't have a reason to give a damn because he isn't all that important.

I have a Nest and the only thing I wish it wouldn't do is turn off the air at all when the weather system knows that it's very hot outside (perhaps this has to do with poor insulation, though). Otherwise, if you turn off auto-away during heat waves, it's great. The home I live in has pets and the thermostat is located on the top floor (it's old and the layout is less than efficient) so having access to it from anywhere in the world in an easy-to-use manner is incredibly useful.

But investors do, and at the beginning it matters a lot.

Some investors do.

On a worldwide scale, the overwhelming majority of investors have never heard of Paul Graham.

I think Nest is far beyond the beginning. They have a shipping product in use with 1000+ reviews on Amazon. Investors aren't going to care if one investor had a problem with the unit.

Have you invested into Birkenstock yet? No? Why? They will be multi-billion dollar company in the near future...

This is terribly insulting to investors. And probably true.