Sometimes I rely on guides on puzzles that I'm absolutely stumped at, like the NES version of Legend of Zelda... I had no clue on where to go and how to go through that magic forest. XD
I really don't think there's anything wrong with them, since they're there for your own convenience. Or, if you want to press on without one and figure out everything on your own, then that's cool too. It really depends on the gamer.