Enough of the personal attacks and challenges. Back to the actual subject of the thread:
I agree with Catherine, condolences and the like should be separated from critique and analysis. However, I think critique and analysis are appropriate, if not necessary. Facts should come from those who are witnesses. Facts are things that come from the five senses. All else is opinion. IMHO, any statement that utilizes a conjugation of the verb “to be” is probably an opinion, whether the speaker’s or someone else’s. (Saying “It is 5:00 p.m.” is an opinion. Saying “My watch reads 5:00” is a fact.)
Subject to the foregoing, opinions and speculation is not a bad thing. It should be based on fact. A recent thread on a diving accident reflected something to the effect that the deceased diver’s second stage did not have a mouthpiece. That is a very odd fact. Why would it not have a mouthpiece? The answer may be speculative. However, such speculation might lead to investigation that might lead to a potentially valid answer. (For what its worth, in my experience, mouthpieces don’t often just come off second stages. Perhaps it was not installed correctly—in which case, it could have been a contributing factor to the injury. Perhaps it was pulled off in a struggle for the second stage—in which case it might be in someone’s mouth and might give a clue as to the nature of the struggle.)
Speculation may lead to answers.
Discussion, even without all the facts may prevent future injuries.
As to Catherine’s inquiry as to whether lawyers peruse what people have written. The answer is “yes.” We have to separate useful from useless. And, even if we don’t peruse, the experts we hire to educate us and provide us with opinions, do.
BTW: If I should die while diving, I hope all my SB friends will openly discuss it. Perhaps something useful will come to light and will prevent future incidents. However, I would hope they would refrain from unnecessarily criticizing my buddy, dive master, dive operator, resort, equipment manufacturer or anyone else. I’m sure these already feel badly. But, if there is justified blame, then it should not be hidden. Again, that is to prevent future incidents.
Also: As to DM protocol of not discussing accidents, my understanding is that this is to protect the DM, dive operator and certifying organization from possible liability, not because silence is the “right thing” to maintain.