Can u say the meaning of star and levels in my lot Is it necessary ?

yes the goals give you something to work for, makes it more fun, I have a little dream of being no.1 in the "user by rating" part, I am leap frogging my way up bit by bit...ahahahahh

I think the numbers and colours of the stars, or how "full" a star is (how "coloured in" a star is) have to do with the number of positive (+) ratings members get, as opposed to the number of negative (-) ratings they get. I hope that helps answer your questions. I'm not on here for the ratings, I'm just on here for the chat.