Basically, make it so that bugs/suggestions that are never completed move back up to the front of the bugs/suggestions thread.

Example: If someone posts a suggestion and no one comments on it or it never gets ended with a "Will not fix" or "fixed" or "completed" or etc. then that thread will move up to the front page after a week or so has passed. This will make suggestions and bug fixes better since players are not allowed to double post and there's no other way of moving your thread to the front page especially if it's something a lot of people find important or good.

Simply Put: Make it so that whenever a week passes by, any bugs/suggestions that were not ended with one of the labels such as "Rejected or Completed", those threads will move to the front of the page.