It would be extremely helpful if admins could set a deadline for RSVP’s so that people can’t wait till the last second to RSVP to an event. We need time for planning (meals, shopping, vehicle space, etc.) and allowing last minute RSVP’s is not always conducive to this.
Also, I personally feel that an RSVP status of “Maybe” is completely useless and think it would be fine if it went away all together. If you prefer to keep it though, it would be nice if those “Maybe” statuses would automatically change to a “NO” after the cutoff date mentioned above.