If FOSS users had to rely on official documentation, adoption would drop 99%.
Sometimes its easier to read the source than the docs!
Every software tutorial is bound to get outdated and fogotten eventually and that can be dagerous.
Furthermore, not only do you need to trust the software providers/maintainers, you also need to trust the tutorial author, which adds an often unnecessary 3rd party.
Make it a habbit to prefer official docs: README, man pages, wiki articles, packaged example configs, etc.
Like nostr:npub1v6qjdzkwgaydgxjvlnq7vsqxlwf4h0p4j7pt8ktprajd28r82tvs54nzyr said, a single bad option in bitcoin..conf might be enough to compromise your machine.
Discussion
If you need a tutorial to use it, adoption will always be shit regardless.