I must say, I totally disagree.
I like the fact that items have a level and stick with it. Otherwise, it could lead to even messier situation. Like you could have the idea to keep a boss around, and go back to fight it when you are overpowered only to find loot fit to you, this does not make sense.
In a way, if the stick in the wood is better than the epic loot that you have, you didn't follow the game the way it was intended.
