I have been saying this for years so I fully support this idea. The goal should be for everyone to fight at their "walk around" weight. The whole idea of weight classes was to have fights between similar sized fighters. I'm NOT calling any fighter a coward but extreme weight-cutting is a cowardly process - to be bigger than your opponent rather than more skilled.
It's a huge health risk as well because of the strikes to the head and the loss of water in the brain's protective membrane. I think this is just as big of problem as PEDs.
I disagree witht he walk around weight part. If you are over weight, you shouldn't have to stay at that weight. I think that they should be ceritfied at whatever weight they would be at 7 percent body fat.