It would additionally useful if mods had the ability to return stars though. It prevents abuse if abuse ever happened, but it would also allow things like returning stars back if needed. I feel mods should have this ability reserved. (So as to give stars back to people who voted for an idea that was denied for its complexity, and not because it was a bad idea).
Just because it hasn't happened yet, doesn't mean it wont happen. I made this thread because of the restructuring of the CTB auto idea thread. The OP literally rewrote the entire idea and changed it's entire function and it has +50, if i had stars and voted for idea 1, I might not have been such an avid supporter of idea 2. Idea makers shouldn't have the luxury of drastically changing their thread's scope, while retaining the thread's priority, because the new idea hasn't been thoroughly considered before the stars were thrown.
If this idea were implemented, it would be fair to only allow it for current ideas. Idea that may have already have been altered before implementation would be exempt from this policy.