@Toby: The difference between this and Domri Rade is that Domri Rade specifically says “reveal that card…if you do…” It specifically gives you an instruction to reveal it. If you're revealing the card only to verify legality, and not because the ability you're activating specifically tells you to, I think you're doing something wrong.
@Uncle Scott: The way I see it, not using a judge is restricting strategic options =D