Stage Level is similar to a "career ladder" but the difference is that this time, your fans and customers are the ones who determine how fast you move up this ladder as every time you receive a positive endorsement from them ( e.g. Share, Like, Good Service Rating), you will score StagePoints. When you hit the minimum points required, your Stage Level will go up (e.g. from 2 Silver Star to 3 Silver Star).
There are 3 types of Stars in Stage Level - Bronze, Silver and Gold. The maximum number of stars in each type is 3. So in total, there are 9 levels in Stage Level.