And also, following up the idea of a good critic, a media critic’s purpose is to offer a unique view of media to the benefit of the reader and their followers. As long as the critic writes what they honestly think consistently, like-minded people will follow them because the critic spends time to find the things that the critic values, and therefore what their audience values.
Like in writing, when you write for yourself, eventually you’ll find a niche of people who identify with you, however small.