CASA should not need to try. Aviators are by nature and design meant to be a responsible and conservative with above average situational awareness skills.
That is self regulating and not in need of policing.
The problem is the bar has been lowered, that in most ways is a good thing, more opportunity for those with passion and less finances to participate, grow and learn. The downside is that it exposes us all to the greater chance of morons participating. Please refer to my largish post a couple of pages back if you have not read it for more details.