This is what Apple says about repairing permissions: "Sometimes incorrect file permissions cause erratic system behavior, such as inability to mount disk images or add files to the Applications folder as an Admin user."
I had a customer with a powerbook, which took 4 minutes to start up. after repairing permissions, it took only 30 secs...so if you ask me, there's definately a use for it
This is what Apple says about repairing permissions: "Sometimes incorrect file permissions cause erratic system behavior, such as inability to mount disk images or add files to the Applications folder as an Admin user."
I had a customer with a powerbook, which took 4 minutes to start up. after repairing permissions, it took only 30 secs...so if you ask me, there's definately a use for it