In a 1997 talk, Elder Gerald Lund spoke of 5 ways you can distinguish between real and counterfeit revelation. For number 5, he stated the following:
5 A person is not given revelation to direct another person unless they have priesthood or family responsibility for that person.
This principle is described by Elder Dallin H. Oaks of the Quorum of the Twelve Apostles as the principle of “stewardship in revelation.” This means that “only the President of the Church receives revelation to guide the entire Church. Only the stake president receives revelation for the special guidance of the stake. The person who receives revelation for the ward is the bishop. … When one person purports to receive revelation for another person outside his or her own area of responsibility … you can be sure that such revelations are not from the Lord” (“Revelation,” New Era,Sept. 1982, 46).