Yes, I agree with this lardman. "Not voting" is basically reading something and going "ok", voting yes means that "I approve of this message" and voting no is "I don't really want to see this here". I think it's pretty simple and functional. The more complicated something gets, the harder it makes to think about it and the less people use it.

"No" is not the end of the world. Otherwise you'll turn out like George Costanza. As this site says,

"Inferior extraverted feeling shows up in nearly every episode, but comes out explicitly when his girlfriend asks him rhetorically, "Does everyone have to like you?" George answers, "Yes! Everyone has to like me!" Here we see George's quixotic quest laid plain. He wants to be liked. But always on his terms, never on others'.

Whenever anyone doesn't like or respect George, he views this as a failure of reason in need of correction. The other person must be set straight so they properly appreciate George and see for themselves that he has only been doing right, only for the purest motives of respect for the right order of things. Thus he appeals to introverted thinking. He tries to get people to see what truly makes sense--that they should like him."