As a rule I don't tell people to RTFM, because it has some rude dismissive connotations, although I will share when it helps me solve a problem I've been butting up against that would've been solved if I had just read the docs.
That being said, I do encourage people to read the docs, as others' walkthroughs can be misinformational, and are usually tied to specific setups or software and hardware versions. It requires learning how to wade through a lot of information to find the info you need, but the info is usually guaranteed to be the most current and reliable.
That all being said, I'm more than happy to help when people want it.