What happens when somebody "leaves" RallyPoint? What are the notification responsibilities?

Since our military service is vetted before we become bona fide RallyPoint members, I was curious about what should happen when members die, become stricken with a debilitating disease like Alzheimer's or perish the thought leave of our own free will.
First - I expect our member number would be "retired." It might be nice to have a departed members page with the names and member numbers of those who have departed posted with soft funeral music in the background :-)
Second - there should be a process by which RallyPoint is notified in the event of death. I know that Funeral Homes forward death certificates to Social Security. Since RallyPoint has access to some personal DoD information such as DD 214's, I would hope that there would be a relationship with the VA and DoD so that notification of military deaths either in service or later could be linked back to RallyPoint which could then close/retire an account.
Third - practically speaking there are many RallyPoint members who have done virtually nothing since they joined. How long can/should somebody be a member without entering any keystrokes since they first signed up? Should there be a way to automatically "check the pulse" periodically to verify contact information without being invasive?
Fourth - have RallyPoint member numbers 1 through 603 been "retired" already? I expect those numbers may have been part of the beta test period and that is why the founders numbers seem to start at 604.