You also have to look at who is active on this board. There is a relatively (IMO) strong feeling of personal responsibility advocated here, however this board is only a small sliver in the total number of divers worldwide, and within that sliver, there is a much smaller percentage of posters that are regularly active and vocal.
More and more, are we seeing a society where nothing is ever our fault, where regulation is needed to protect us from ourselves, and we must all conform to rules put in place to protect the weakest(read dumbest) link. I am anxiously waiting for the day when paper can only be sold with soft edges to protect the masses from the scourge of paper cuts.
I joined this board soon after competing my ow and was amazed at how little I really knew, and how much I had never thought of or considered. The importance of being self reliant, the you don't know what you don't know, being a good buddy and what that entails, owning and understanding your gear, trust me dives, and most recently Dandydon's crusade for personal CO testers, are all topics (I'm know there are several others that elude me at the moment) that I little or no understanding of.
There are too many (again IMO) "vacation" divers who have only a basic idea of what they're doing who rely entirely on the dm or guide to hold their hand and be there for them when they do something stupid through shear ignorance. I applaud those instructors who have high standards above and beyond the course minimums. It is entirely to easy to get certified, and once certified a diver is qualified for dives well beyond what I now know to be prudent. From what I've seen ow Certs are the fuzzy feel good about diving classes that attract people and sometimes give them a false sence of confidence in an unforgiving environment.
A non-diving friend who is looking to get certified in the near future continually questions why I am regularly taking classes for new Certs and what the point of them is. 'If not taking a deep diver class doesn't prevent me from going deep then why take it?' was one of these questions. Whether or not my answer convinced him, only time will tell.
Rant over. I know I wandered off topic, but the bottom line is that to many people are not self reliant either through ignorance or through the belief that someone will always be there for them. When this happens, the finger pointing begins. It is harder and harder for me to imagine scenarios where I would find myself in a diving accident that is completely 100% not my fault.