A list of known room thieves is a great idea, not for shaming though. For adding to full ignore lists, so any creations are not seen by them. I know this would not be foolproof as ppl can create alt accounts, but it would help a bit..perhaps.
I have one I can share. It's something I did early on when WB was new, so a little primitive in some ways, but lag free. But if you still need something and want to take a look, msg me inworld. JoshyV.