This doesn't make sense to me. Is there any example of a way Mark could have not been okay in a way that is helped by people on the internet tracking him down? Clearly his material was intentionally taken down.. short of "silenced by the gubbermint", I'm not sure how tracking him down could help. It seems more like voyeurism..
Yes, this behavior is a typical pattern of people suffering from long-term depression who are entering a final stage before suicide.
Of the typical signs: a sudden change in behavior, loss of interest in favored activities, setting affairs in order, withdrawing from others, self destructive behavior.
You wouldn't believe the number of suicides who, as their last and final act, cleaned up (shaved, got a hair cut, put on a suit or nice dress, put on makeup, etc.) and prior to that suddenly gave away all of their stuff particularly prized possessions (and for creative types, their lifetime collection of work).
