Thread:Project:Support desk/How to remove user creations from the Recent Changes page?/reply (14)

Aha yes! That's more or less exactly what I'm looking for.

$wgLogRestrictions["newusers"] = 'autoconfirmed';

That's an interesting quirk of the permissions. By restricting it slightly, the entries don't get put on recent changes at all. So with this restriction it means un-logged-in users don't get to see the log, but that's no big problem