everyone who know can answer pls..

the best response is also one of the crieria for having good reputation.further personnaly i feel that it will also have influence in earning.when i dont get any best response on the day my earnings per post will be between 2-3 cents where as when i has some even atleast one best response it will be from 4-5 cents for a response.so i think the best response will have some effect in the earnings per post.

the best response will increase in your reputation and as the percentage increase then your star rating will improve too. good luck...

From my understanding, the more best responses you have, te better star rating you have.