Lufguss user has offered, but is not sure whether that would cause issues with the residents, as it's a form of vigilante justice, and current "owner" probably wasn't the original thief.
I mean, technically double locking it and getting the new "owner" to abandon it might be doing them a favour as it moves it on without them having to handle stolen goods
Ask lufgus user to sling a lock around it next time he sees it?