The moment we agree to be a fan/follower of someone we are lost from our own path. It results in agreement to lose our opportunity to be free and enlightened. Fandom/following is an acceptance to the influence of the other. All influences are bad. Influence makes you lose originality. That something which is not you comes to existence, off course not in reality but in illusion. This illusion proves to be barrier(as a confusion to mistake one for the other) to understand your actual self. The enlightenment is byproduct of looking with untainted vision at one's own reality.
The eyes of a fan are covered with colored glasses. It will never be able to see the reality, without uncovering the eyes. Another great disadvantage for a fan/follower is the attachment to this colored glasses. The influencer, who seeks a following, seeds slowly, gradually and carefully the extreme relations of follower's beliefs and ego with this tinted glass. The followers first step into the system is to believe. Completely and irrationally. By discarding every opportunity of falsification. All beliefs are false by nature. As the fan or follower enters this charismatic influence, his real self get trapped more and more layer by layer. Making introspection extremely difficult.
All influences are bad influences. Hence Siddhartha Gautama, the Buddha, once said, "If you find a buddha in your path then kill him." He meant to avoid all influences and walk your path to enlightenment alone. Refrain from creating layers of fake identities and introspect the physical reality. The permanent can be discovered only through introspection of what is impermanent.