If an administrator blocks an account software should block the IP belonging to
this account for a (short) time, say 10 or 15 minutes, in order to prevent the
blocked user to create new accounts.
Vandals often create MANY new accounts from the same IP after an admin has
blocked them. Because of the autoblock the new accounts can not edit
immediately, but admins have to block these new accounts to prevent vandalism
after the autoblock time has expired.
Therefore the IP should automatically blocked for a short time. This IP block
must not be inserted into the IP blocklist. Otherwise every user might see the
IP of the vandal account (which is a function of checkuser).
Version: unspecified
Severity: major