From what I've seen on the Quest list over the last year, people have been very open about accidents within the DIR community. Being open about the intimate details allows for people to learn and adapt. I can think of two accidents that were posted on the quest list last year, unfortunately one resulted in a death, and one was a WKPP rebreather diver, both accidents were analyzed with some very intimate detail and at least within the WKPP it mandated that some protocols were changed to prevent the accident in the future.