This is something that has been bothering me for a while actually. On Stack Overflow, I'm a 20K+ user who spends a decent amount of time in the review queues (I have Steward badges for two of them). That being said, I encounter this on almost a daily basis:
Congratulations! This was only a test, designed to make sure you were paying attention...
Now, that's fine and dandy as a feature to keep people from gaming the review queues for badges. But, what I don't understand is why everyone must be subjected to this. Overall, what I'm saying is; Is it necessary to continue to audit 20K users who already have all the badges in that particular queue?
I can't think of anything I'd gain from robo-reviewing at this point, and this isn't making me feel like a "trusted user." But, I could be wrong and overlooking something entirely.