Indeed. I can see users potentially being down-voted simply for having opinions that a majority of or a good chunk of other users don't really like. A mobocracy of sorts punishing some users for being "other." I have been on boards with that type of system, and I really don't like it.
I actually have it on my board right now, but I don't know how to rate as a normal user. I know about rating in the ACP, but I can't seem to find a Rate button on a users profile.
Then you should be asking in the support topic for the extension
I accidentally downvoted, thanks for telling me