I've never really taken much notice of "review queue progress" (or badges in general, to be honest). But I just realised that although several other users have a steward gold badge (for completing at least 1,000 review tasks), I'm barely halfway there. But I think I do my fair share of reviewing.
I think the reason for this is that when I'm looking at entries that are only in the review queue because someone closevoted, I often feel I don't have enough information to make a decision without "drilling down" to look at the entire post (by clicking on the Question Title as shown within the entry for that item in the review queue).
So nine times out of ten, if I'm going to add my own closevote, I do it from that "lower level", then click my browser "back" button to return to the review queue. At that point, the display shows This item is not reviewable, so I click on "next" to look at the next item in the queue.
I've just established that my current progress level was 537 (which I assume is total closevote items reviewed since I signed up to ELU, at which time there was one item in the closevote queue. I went through out my normal procedure as above, and my badge progress still says 537.
I don't know if I'm misunderstanding the situation here, and I've no idea if it's even practical for the system to realise what I'm doing and credit me with having performed the review there, but I have the distinct feeling I wuz robbed! So I'm tagging this "bug" as well as "feature-request".
EDIT:
If I am being robbed, can I be the second user ever on ELU to sport an unsung hero badge?