From what I can tell, this is flatly false. "RTFM" is a common catch phrase. Users are expected to familiarize themselves with available documentation in order to avoid making newbie mistakes. Tools coming out of advanced hacker cultures, such as the BSD community, tend to have excellent documentation.

I've even encountered hackerly tools with lock-outs to ensure that you've read the manual — for instance a command that defaults to doing nothing, and only does what it's supposed to if you use a command-line switch only mentioned in the middle of the documentation. (In the case I'm thinking of, this was a safety feature on a tool that could be easily misused in a way that would harm others.)