This mode is simple: All Aggressive mobs are changed to passive mobs and all passive mobs are changed to aggresive mobs (Neutral mobs stay the same). This is for players who want sort of a mix up
It's a good idea but not Notch worthy. I would play with that mod but only for some quick thrills. Don't think it really deserves to be a Notch creation.
Incompetence is a plague. I am the cure.
For all your wolf suggestion needs, I present the WOLF MEGATHREAD!
Stories: A Miner's Chronicle, The Lost Chronicle [Entries 32-2, 33-1, and 33-2 out!]
T_T
How to not die in a cave