It's a sad sign when an internet forum forcefully dictates what people can and can't do and is incapable of being impartial. This is just another policy showing that. Why not let people think for themselves and take responsibility for their own action or let debate sort it out?
To think for yourself, you need to be informed enough to do so, both in terms of facts and perspective. Cave diving is seen as more extreme (as in extremely dangerous without proper training which is consistently put in practice) compared to other 'grey area' controversial topics (e.g. : deep air, solo diving, fairly new OW divers with just basic OW cert. diving doing guided roughly 130 foot Blue Hole dives out of Belize, etc
).
1.) Many fairly new OW divers, or even people not yet certified, come to ScubaBoard looking for guidance. Many are already struggling with info. overhead and expecting them to thoroughly research and grasp the merits of cave training & certification may be too much.
2.) It's said some caves look deceptively 'safe' - very clear water, plenty of room to swim into
but some untrained folks don't know about silt outs, the need to run lines, etc
And may not know that they
need to know about these things. You don't know what you don't know.
3.) Staying down on a standard OW dive & running out of air is apt to send a diver to his buddy for an octopus, or maybe into a CESA. Violating NDLs might lead to DCS, such as getting bent. These things are bad. Screwing up in a cave, on the other hand, seems to be associated with one main bad outcome - death. And I would imagine a rather ugly one at that.
So, on a general scuba forum where ignorance/naivety and deceptively safe looking great lethality come together and newbies don't always know which point-of-view warrior to believe, and a lot of these people have families...
I think it's a good policy.
I'm not a cave diver. Thanks to what I've learned on this forum, time and again, I'm probably less likely to go poking around 'just a little ways' into one, either.
Richard.