I think it would be a good idea to have some automatic admin solution to deal with this. I think there is a similar type of function for dead links in LinksSQL that are listed for the admin to take action.

People do leave jobs for new ones (voluntarily or involuntarily) and hence change email for example. And in this case the user could have forgotten to change his/her email. It may be an idea to have a private message issued first, before doing anything as drastic as deleting the user ?

John
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