Draft Guides and Madden are like steroids in Baseball. Sure Barry Bonds never failed a drug test but there was something fishy about him.
Likewise there is something fishy about a guy who is able to draft 10+ Quick/Fast/Star players in 2 years. Somehow he always knows when the trade up. He always knows when to take a guy 2-3 rounds before their slated to be selected. He's not using a draft guide he just "has a method" of keys that make it easier to find these players.
If you are in an offline league. Play as you want.
If you are in an Online League. No matter how you slice it you are cheating those other guys.
This is why I like the NCAA imported classes for online dynasties. Even though it randomizes the skill of players. If you didn't expect J. Clowney to import a certain way and he was just a random DE it wouldn't bother you. This way if someone hits on 10+ star players in 2 years you know they actually found them since it's random.