Yes, me.
When i started i used much higher dosages than now. I did look ok, but felt like shit. These days i use much, much lower dosages and feel much better. (I don't look that "good" anymore though
). Anyways i think the biggest reason for this might be the fact that the longer you are in this game the better you know yourself, how to train, how to eat and what drugs do what so you can get more out of what you take.
It's simply optimization.
PS. In my book this approach is "smart and healthy", but don't expect to became a competitive BB with it, some PL's can get away with it though...