No need for a useless interim belt. We don't need another fake champ like Carlos Condit winning a belt, then sitting on the sidelines for a year just to get his ass-kicked by the real champ.
Definitely worse than a real Champion who doesn't defend his real belt is a Interim Champion that doesn't defend his interim belt.
In a time span of 7 months, Renan Barao defended his interim belt two times
after earning it in July 2012. That's a pretty active interim Champion and always blessing us with mind blowing performances.