I'm all for dumping ultimate-result spells, especially ones that eliminate skills. IMC Knock is a Open Lock bonus, Detect Good/Evil is a Sense Motive bonus, and Identify is a Knowledge: Arcana bonus. Just as no creature should be completely immune to effects such as fire, electricity, sleep, etc.
I also removed pearls as components for Identify, replacing it with book research and communing with spirits.
The mass extermination of poor mollusks just to identify the multitude of magic items permeating D&D is abhorent and needs to be stopped.