Well I can answer for trophies which I guess is the same.
I do not cheat but I do look into faq, especially for those painfull trophies/achievements that require you to find 30 secret suitcase spread all over the game...
I however totally ignore guides when going for the first time through a game and just play it without any help, then once it is completed I go back to it for achievements...
I have cheated on a couple of games with online achievements/trophies that I felt were impossible to achieve any other way ( I had someone help me for 3 LOTR trophies ( no way you can legit get 35 kills with the warrior in 1 game. or 10 kills without dying with the Witchking).
But I don't like doing that for things that are achievable ( I kinda dislike those posts you see as soon as a new game is out where people ask for helps for online achievements ). It's one thing to get help for the crazy ones, but the regular ones, come on....( like those folks boosting in Warhawk or KZ2 because they are too lazy to earn medals/badges legit..)








