Why Wlad does my nut in!

Wladomir Klitchko is the man most feel is on top of the HW mountain, he's a guy with Big Time Power, above average speed, he's a huge fighter at 6ft 6inch, His jab is out of this world, his left hook and straight right brutal shots, He is white which helps market a fighter apparently, outside the ring he is intelligent, articulate, does lots for charitys and such basically he is a nice and likeable guy! I WANT to root for him! But as soon as he starts fighting its bloody hard too, this guy has SO much potential its unreal yet insists on fighting like he is scared to death! After being stopped 3 times a bit of caution is ok but he is WAY over board, Rahman was done after a round, the guy just sat there on the ropes throwing NOTHING and Wlad still wouldnt throw a three punch combo! If Wlad would just string a few shots together here and there Mabey even throw one or two body shots just to mix things up he'd be LOVED by all! THE most Frustrating fighter of all time.