Have been going back and forth on this. The trade off is that you lose a lot of potential to alert the user to suspicious behavior. For example, you might get p

Have been going back and forth on this. The trade off is that you lose a lot of potential to alert the user to suspicious behavior. For example, you might get promoted to give an all permission to use "your Library" (for access to certain cache folders); but if it later misbehaves then you won't see it accessing other cache folder, some belonging to other apps. On the other hand, it's still better than not using it at all, which most novice users will end up doing for a power user app (not using it).