How does an active conversation disappear?

You do not allow email addresses in ads though?

It was possible before, so perhaps consider returning that right to the entire membership and this will not continue to be a problem?

You are sent an email when you get a conversation and I believe it tells you the name of the member that sent it. So if you go to those emails you can possibly find out who you were having a conversation with.

This wont continue to be a problem anyway. And no, Im not returning emails in public posts.