Occasionally I stumble onto random protected questions like this one: Is it possible to kill everyone or are some NPCs unkillable? and I wonder if it's really necessary that they are still protected.
It seems like there are two broad classes of protected questions, one because they briefly see a surge in low-quality answers (usually due to some fleeting publicity, e.g. being a "hot question" in the quick box top-left), and those that are more chronically afflicted because their popularity doesn't ever truly wane.
Is there any system like Wikipedia's timed semi-protection (WP's semi-protect being roughly equal to SE's protect) where it can optionally expire after so long (e.g. a day, a week)? Would it be a useful feature for those 15-minutes-of-fame questions?