But this is not tranparent to the visitors, you mislead them. It's silly like at Facebook, you can only like it, all is sooo great, consequently you should give up voting completely. Of course there are also lots of poor sites out there. Because of your voting system it's harder to classify the sites. So even absolut trashy sites get 3 stars.

If you were honest, you would simply only offer "Ok", "Good" and "Excellent", but your way you take all your visitors and also the webmastes for a fool.

"If you don't like it, then don't use the site."
The visitors and webmasters don't know about that cheat and so they cannot like it or not and so they cannot use/visit your site or not.

And at the end of the day your cheat is useless because the poor up to the best sites have 3 stars up to 5 stars instead 1 up to 5 stars. What have you won?