Not that i ever did this, but I was never concerned about an area I walked into or a dungeon I entered that i would die basically because I knew the monsters would be at my skill level. I guess what I'm saying is I like the idea of entering a dungeon and realizing that the enemies inside are a bit to powerful for me to handle until I level my character up a bit. Having a free roam world that levels up with me isn't very exciting at all and I just never felt as if i was in any major danger.