I posted a request for a travel buddy and I found one. I thought it would be courteous to remove my inquiry from the message boards. I did not see any way to kill or remove the thread.
So... it made me think that it would save some hard drive space somewhere and also possibly eliminate a lot of confusion to clean up and wipe out old threads. For some reason, some just refuse to die and when something is on the first page, one would never imagine that the request for a travel buddy (or any other thread for that matter) could possibly be for a cruise several years in the past.
Just thinking out loud, hoping to help make the site a little more user friendly.