A message just disappeared from my inbox. What happened?
If a message completely disappears from your inbox, that means that the member with whom you were communicating either deleted their own profile,was removed from the site or one of you blocked the other person. While we would love to answer any further questions you have, please keep in mind that we cannot give out information as to which of these possibilities is the case.
Hope this helps clarify,
The Grokio Support Team