I suppose rating only + and -, one can count how many videos has one rated, but otherwise...
It tends to fall into "I'll give everything 1 and be the VERY BEST"
Though you can duplicate this to "I'll give everything
and be the VERY BEST" - but that's one's option.
It is possible to create this, but it's very, very difficult and has to count with many possibilities (like biased opinion giver, biased counter-opinion giver, trolls, fake accounts, etc, etc)