There’s plenty of reasons for a person to go missing or quit voluntarily. I’ve been there when I’ve said “screw this ****” ….
But if a person is well known enough it would be cool if they said/explained it to a mod/admin so if questions were raised, it could be relayed to concerned members.
Then there’s the involuntary reasons. I went as far as to tell my sister about some of my online history, showed her some web sites… thinking I’d give her my user names and passwords. She knew what I was getting at and broke out paper and pen. I said not now. But even without that she could pass the word of my demise when it will happen sooner or later.
Maybe in my will I’ll give her my passwords.