We are unable to purge users that have no name but the auto purger seems

We are unable to purge users that have no name but the auto purger seems
to be finding some.
Altered the code so that we do not create a Users Purged message if we
try to purge a user with no name.
Instead we create a User Corrupt message containing the user number of
every user with no name.
These users shouldn't exist so we need to find out where they are coming
from.