[outime]

>I have actually heard otherwise intelligent people say things just like that, including site operators who run nontrivial websites

This is an illusion we really need to remove from our collective consciousness. Running a popular website while being an ops genius, being a neurosurgeon who saves lives every day or being the world's best architect doesn't mean someone has sound opinions on topics right outside their area of expertise.

In fact, nowadays it seems to be all about appeals to authority which IMHO makes us more ignorant because many people seem to not think critically anymore. Instead, it's just "an expert said so" - then you look into the "expert" and in many cases they either aren't actually an expert or they're a paid shill. But that's a topic for some other day.