what does the star stands for? and what does the number inside the star mean??

Mylot begin to award the stars when you reach 100 points. These are numbered 1-10 and show your grading with reference to your contributions to Mylot. Number 9 is the next to highest grading, and is related to the quality and relevance of your responses and the quality and content of your discussions, i.e. if you post a good, informative discussion or response, you are graded higher. You have been awarded a high grading because your discussions and responses are relative to the topic and detailed. Well done!!!