When you're stuck, you need less creative freedom, not more. Generators force creativity with specific tasks to get you creating.
Repeating what's worked before is easy because you don't have to think. But repetition leads to staleness. Generators force creativity by thinking of ideas for you.
Generators permute and show every combination of a set of things so you can see every possibility.
Creativity comes from free association. Generators force creativity with the absurd and random. Generators are the new cat bag.
noun | cli·ché | \klē-ˈshā
Webster's dictionary defines cliché as "something that is so commonly used in books, stories, etc., that it is no longer effective."
Clichés are the opposite of creative. But they're funny as hell, and guess what can generate them?