Every software tutorial is bound to get outdated and fogotten eventually and that can be dagerous.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.