Most car accidents involving two vehicles are the fault of both drivers.

Same here. One asked a question that Google could easily answer, and
the other told him so, and thus offended him.

People who are somewhat new to FLOSS communities sometimes don't even
think about googling for answers, because the information they need
would be private in a proprietary platform. For instance, it is very
hard to discover who is responsible for a certain component of
Microsoft Visual Studio. And even if you do find out, they are usually
not accessible to an outsider. So it's easy to understand why the
whole thread started.

Welcome to Ruby and Free/Libre/OpenSource Software in general, Jonathan!

Cheers,

Luciano