People complained that they were getting "Stuck" on Mobs and that the "Curious" AI was infinitly annoying and had issues when trying to combat foes.

You can't do much as a marauder if 8 goats are sitting behind you for no good reason.

Personally I want collision detection back, it's not a big deal either way. the AI? Well it wasn't amazing in the first place as far as the 3 behavior patterns went.

Curious - Follow nearest NPC upon sight
Nuetral - Take no action (If agressive attack)
Shy - Flee at sight of NPC upon sight

Now the mobs still have some nice functions programmed in such as Efts, Funguars and a few other quirks some mobs have. But as far as pathing AI goes they have all been switched to nuetral.