The difference in your example is that you're trying to catch the same user in the best mood and not filter some users out. People keep saying "this isn't prev

The difference in your example is that you're trying to catch the same user in the best mood and not filter some users out. People keep saying "this isn't preventing anyone from rating," but that's total nonsense. If one user can get to a rating in one click while the other has to exit your app and go hunt it down in the store, you are filtering the latter out even if your filter is not 100% effective.