This can be said about many things that cause addiciton or harm, gambling being just one of them, but I digress. I see another problem here though, namely that what these strict rules often tend to result in is that non-problem gamblers get "punished" by them more than they help the problem gamblers, case in point being the recent source of wealth requests issued against players, making them go through hoops, send private client information via mail and so on - clearly these things are not easy to implement and it's never going to work perfectly (or even properly). I could draw a parallel to anti-piracy measures in video games that hurt buyers with needless restrictions while pirates crack it quickly anyway. So I don't really think that "more strict rules" are likely to be a good thing, though it would be nice to be proven wrong.
And all things said and done this could lead to philosophical debates about just how evil gambling is, and probably would get a lot of advocates around the world for downright banning it, which is likely why I seem to find myself more in the "people should be responsible for their own actions" camp than in the "casinos should protect players" camp - though they both certainly do have a lot of merit.