> We take the position that email threads shouldn't be archived unless someone flags them to be saved, on the assumption that for most employees there are only

> We take the position that email threads shouldn't be archived unless someone flags them to be saved, on the assumption that for most employees there are only a couple dozen (if that) really important email threads being created per year. This probably differs from team to team I'm more or less sure I have been saved more than once by people who didn't tidy up after themselves and so left information behind even when they planned to remove it. Sometimes the reason seemed to be that people didn't care, on other cases it seemed like a way to try to keep knowledge for themselves. In those cases we would have been much better off if the default wasn't one-to-one. Not because they wouldn't have tried to circumvent it but because it would slip up more often. (Of course the real problem on such places is the culture though.)