This is basically a resurrection of https://meta.askubuntu.com/questions/2468/how-should-we-define-abandoned-as-a-close-reason, but given https://meta.askubuntu.com/questions/6492/reminder-unanswered-time-too-localised?cb=1, I think we need to actually revisit this. Should we add a new close reason for "Abandoned" with a specific message related to abandonment.