>The aggregators never really delete anything. Sort of. Data that is 5+ years old is pretty stale. How many things don't change over that period of time and

>The aggregators never really delete anything. Sort of. Data that is 5+ years old is pretty stale. How many things don't change over that period of time and how can you be sure that they haven't changed? The most valuable things are phone numbers and email addresses. We expect those to be maintained so we can re-establish contact with old friends.