Per PotsdamLamb in IRC, when automatically reporting vandals to WP:VIP (simplewiki equivalent to WP:AIV), posts are not signed with ~~~~, resulting in the need to manually sign posts later.
Quickly glancing at decent number of recent edits, it does seem to be convention to sign posts to WP:VIP on simplewiki, so this is unlikely to be an intentional omission.
This should be fixed in the project config, by simply adding ~~~~ to the end of the aiv-ip and aiv-user lines. The project config is protected, and must be edited by an administrator.
