I'm only starting to develop iPhone apps but as a user I find the review/rating process completely broken. Rating an app seems to take far too long and interrup

I'm only starting to develop iPhone apps but as a user I find the review/rating process completely broken. Rating an app seems to take far too long and interrupts my work, so I never do it. The only time a user will be sufficiently motivated to rate your app is when they really hate it. On the flip-side, when you search the app store the results don't appear to be sorted by rating so I wonder what effect it really has