I have several friends, all graduate students at decent universities, who are providing paid graduate school application guidance services, where they help the future graduate applicants stand better chances to get admitted.
Originally, I regarded this as a 100% OK behavior, until I realize that they are very sneaky about their services, as if the services are something underhand. Some of them even provide the services anonymously.
My guess is that they may leak some information obtained from the admission committee to their clients. However, I feel that they can neither obtain any critical admission information nor make admission decisions, since after all, they are just graduate students. But why are they hiding?
Are such services unethical? If so, how will the school deal with such cases?