Sorry, all. This debate just doesn't tread water with me. Before a society and/or industry mandates such a thing, there are at least two main issues that MUST be 100% agreed to.
1. The risk of not recertifying MUST be high. I don't mean a careless diver here and there. It's got to be severe. Nobody argues about pilots needing regular checkrides and certifications - BECAUSE IT COULD KILL ALOT OF PEOPLE - I MEAN ALOT... Your safety in diving STILL ultimately resides with YOU. IMHO, there is not ONE reason for recertification that passes this test - period. If you ignore the training and kill yourself by doing something stupid like diving 200 feet on air (To which many of you idiots brag about), or brushing off your computer because you think it is "too conservative" (Yes, I have been witness to this maniac behaviour as well - by a Divemaster of all people) no one is to blame but YOU. It is also YOUR responsibility not to allow another "I think I am immune to all" diver personality kill you on a dive. Sorry for the cruel words, but I have read all I can take in the last few months on this subject.
2. Who the hell is going to regulate this rule - PADI? I don't think so! Money-mongers are already too well established throughout the diving community enough as it is. The underlying reason they push for this is simply because they have an excuse to get more of your money. I recently read a flyer by a dive manufacterer on how they are dedicated to stomping out internet sales. Not ONE sentence in this 4 page waste of paper mentioned "quality" or "safety". It was over "your LDS profits" - period. Yay, I want these people mandating my safety - NOT! I would rather take a night dive with the Manson family in a sewage pond than trust my "safety" to these monsters.
On the other extreme, do you want the government to have full control of it as well? My God, I can see it now - I'll look like I'm out to repair the Hubble Space telescope underwater if the government gets put in charge of it.
The system is FINE the way it is. Self regulation does a decent job in keeping the greedy hypocrits from controlling things enough with regard to my safety and keeps the ultimate responsibility with me.
Let the flames begin
James