Yeah, it is a members only feature. However there are two account I'm looking into which I think were made for the sole purpose of rating. They have 0 posts and quite a few votes of "1" for people.
And yes, I have records of every single vote (which member voted, which member's car he/she was voting on, and what vote was issued).
I'm starting to learn more toward publishing the current list of all the low votes in a thread, rather than programming the part to show who's voted what for your car. This system is kinda meant to be anonymous.... but we have the "ones" issue.