I believe that The UFC needs to instate a rule that would define exactly how long a champion can go without defending his title before he is stripped of the title. I'd be in favor of a rule stating that if 120 days go by without a champion defending his title, he will be stripped of it.
The hardest thing isn't winning a championship belt; it's holding on to the belt. Far too many fighters have gotten away with ridiculously long periods of time without defending their titles. It hurts the sport and if the sport is to grow, there needs to be a rule that clearly states the maximum amount of time a fighter can go without defending his title before he is stripped of it. We have far to many instances of champions defending their titles once in a year, which makes the title somewhat of a joke. The fans want to see fighting champions who are willing to defend their titles on a regular basis, even when they may be sick or injured. Staying in shape, avoiding serious injury, and being consistently able to defend his title are all attributes a champion should have in order for him to maintain both his and The UFC's credibility and integrity.