> Obviously the likes of Juniper, NetApp, Sony, Netflix, &c., know something you don't.

Or there was no advantage and it was just the preference of the person designing the architecture.

I'm sure all those companies decided to base their flagship products on a particular (implied inferior) system all because of one dude's preference

Junior Developers: There's this guy in the cellar, his beard is 1 metre long, he hates the Sun but he likes FreeBSD.

Management: He must be right if he has such a long beard, let's take FreeBSD

Marketing: At least he is not eating from he's feet or wants to retroactively abort someone, let's go for it.

It's not that far fetched.

Someone is going to be the lead architect. If BSD works as well as Linux but the guy in charge has a preference for BSD, that's enough for them to go BSD.

I am sure companies design their entire OS based on that...

Aren't NetApp and Juniper slowly switching to Linux too?