I have been for several days discussing a question with the asker using comments. Yesterday a message appeared asking me if I wanted to move the discussion to a chat. I asked the question asker if he wanted to do that and he said no, so we continued the discussion via comments. This morning the question has vanished. I can think of two possibilities to explain this removal, and of course there might be other reasons I have not thought of.
The asker removed the question.
Stack Exchange removed the question because we did not move the discussion to a chat.
I do not remember the title of the question of the name of the asker. Is there a way for me to find out why the question vanished?