Milking monsters and bosses for experience and item drops was a major component and proponent of Diablo II's high-speed hack n' slash gameplay style. They are there to be exploited.
Very true, I felt like every time I "milked" a boss I was playing the lotto...'hmmm what will drop this time? hey how about that, acient armor".
Yeah. The bosses weren't epic or challenging. They were basically normal enemies, but with more health and damage. The gameplay didn't really change from a mob to a boss. A boss should feel different. I would like to see harder bosses and the music should change during boss combat.
THIS IS MY BOOMSTICK!
Yeah that was part of my favorite thing. The chance at awesome loot.