User blog comment:Monkey.D.Me/Monkey.D.Dragon = World's Most Wanted Criminal/@comment-5167400-20120605040854

Monkey D Dragon = "The Most Dangerous Man In The World Of One Piece"

Maybe because he obtained the one of the three Ancient Weapon of Destruction called "Uranus". That is why he avoid to expose his physical form in public because he know lots of dirty things about the World Government and Blank Century. And Maybe he is just waiting for Luffy to become strong enough to carry the burden of centuries and the Will Of The D. , [1]for having some forbidden knowledge about the World Government [2]for having a bloodline of the D ,he recruited many "yet unknown" allies, friends and fanatics [3]for being unexposed to publicity and careful for every steps and action that he's taking'.... maybe those are things that makes him "The Most Dangerous Man In The World". ( This is just only my Theory )