The Recent Reviews list on the right hand side is including the original thread author in review threads that have not yet received reviews. It also includes the author's responses to reviews. Therefore, you may want to filter the results to exclude the thread starter. I also notice some posts listed that are not even in the Review Rooms (At least one was in Writing Issues). Another list that might be useful, space permitting, is the most recent Review Room threads with no followups other than by the thread starter (Unreviewed Submissions). As described, it will also list threads in which the author needed to spread his or her submission over more than one post.
I think that's a great idea, Cogito. I'm more attracted to reviewing not-yet-reviewed works for some reason, and that would be a great help to me.
The most recent non-reviewed works suggestion is actually quite good. It'll help ensure everyone gets reviewed at least once.
Yes it should help to make sure everyone receives a review. But it all comes down to the members actually taking time to offer reviews as well. I am sure it will help out though.