There are a lot of problems with the industry. I think everyone knows where I'd start. It becomes an insurance issue I think for dive ops. Some do checkout dives. If a diver, like the 14 year old girl who was a competitive synchronized swimmer I trained years ago, is a complete natural, they don't skip a beat. Others need to retake OW 2 days after they took it. How do you create a system that isn't onerous for the former but helps the latter?Yes, I know about the marketing tool.
I guess I should have clarified that I wasn't asking my rhetorical question about whether certification should expire from the POV of an agency trying to make a sale, but from the perspective of diver safety, reef preservation, etc.