[jome]

Well there are two things I consider:

1. Someone who has suffered a blackout is more suspectible to suffer it again if he dives in the near future, and sometimes people will dive still in the same competition! IMO the minimum should be that a BO results in the athlete being banned from the rest of the starts of the same event
2. It would perhaps make divers think twice about trying/announcing depths or performnaces they are not ready for. For example doing a BO in the first day of the WC team would be disastrous for the whole team - so even the more kamikaze type divers would probably thing twice.

Then again, it might change nothing.

Anyway, I do think that BOs are nowadays in many comps treated a little too lightly...You know, "oh, it was just a bo...nothing serious. I thought someone had an accident". It is serious! Not only as a health thing, but if the organizer thinks selfisly, it is very bad publicity, so it would also serve the organizers purposes to show that "this is not accepted" and enforce some kind of punishment.