well I had a thread earlier and guess what if it was an exploit, bug, error whatever you want to call it; they did not fix it or nerf it so guess it is that way on design or purpose. Guess what I can still use a level bow on my ranger and if you read this slowly: you get the damage output of the bow but other stats will not come into effect until you meet the level requirements. This only works for a bow though and is common knowledge and discussed in general chat daily.
I hope you had fun reading this again that is all.