At the time of writing that comment, no one in this thread had asked those question. Also, on the page linked, the author was not asking those question.
That led me to conclude that nobody asked those things.
After the leader of a substantial project disappears, in the ~20 minutes of incidental contact you have with the issue after having only just been introduced to it having not stumbled over a particular discussion out of sheer dumb fucking luck, you conclude that means the discussion never occurred. Do you really think that's a sound conclusion?
Let me put it this way, do you really think that, in the three months since this person disappeared, out of the dozens of people who have a far closer relationship to him than you do and a far greater personal stake in his wellbeing, that you are really the first person to consider whether something might have happened—to the point that you're comfortable to grandstand with a public indictment about how "sad" their behavior is?
That led me to conclude that nobody asked those things.