Estimation of the work done by bloggers is made to ensure that the blog was able to earn a certain rating, or drop to a level down. This can be a very important criteria for selection of high quality blogs for other advertisers. The estimation is within the range of 1 to 5 stars. The blogger can see the estimation only in the case when you verified written post in time, otherwise it will be verified by a robot, but a little later (it happens only when you for some reason have not been able to check the post for a long time). For many bloggers the estimations are very important. Do not be afraid to rate author of the post, according to his deserts.