Over the years we have written lots of code which were, for a period of time, in production but either got completely replaced or shutdown.
I would like to track & analyze such incidents where the code is either lost forever or waiting for the plug to be pulled on the version control server.
I have not yet prepared any format to collect this data from the developer community, but depending on the traction I receive here, will spend time to ready the format and put out useful analysis on the same.
Please comment about your experience in conservative estimate.