It seems it is almost impossible to ratings to be fair, indeed.
http://tasvideos.org/rating.exe/2926/details
Here, someone voted 0 for both tech and entertainment, which I consider very unfair. (And this same person didn't give a 0 to the tech quality of the previous, obsoleted and less optimal movie, for some reason. People rate inconsistently).
But also, someone voted 10 to entertainment, which is also really unfair. It's just Mario running and eating something for 20 secs.
So, this 2 people have completely different opinions about the movie. Who will say which of them is right? Well, I would say both are wrong. But I'm sure some of my own ratings are probably unfair as well, and that should apply to everyone.
Maybe a solution to this would be giving 5 rating options (1, 2, 3, 4, 5?) instead of 101, and
describing them. Something like what adelikat did here (
http://tasvideos.org/Adelikat/Ratings.html), but with all of this explicitly visible below the rating table, so that everyone will see this before voting. Maybe, this way it will be slightly less arbitrary what is a 1 and what is a 5.