Привет!
Здесь ответ: http://support.italki.com/entries/21629711-italki-points-what-are-they
Так-же можешь мышкой щелкнуть и выйдет описание:
"italki Points is an experimental feature.
We are testing some ideas about giving users points for behaviors that make the italki community a friendlier and more useful place to learn a language.
If you have ideas about how to make italki Points better, you can write your suggestions down in our forum."