He is the beneficiary of the magic of perception in the media. The title, Draft Guru, wasn't taken and he parlayed a hobby into a career. Now, his name is synonymous with the draft.
Peter King did the same thing. He created the perception that he was plugged in and every one in the know talked to him. He was the first to actually make rumors news stories. And guys like Mortenson, Scheffter, Glazer and Florio followed in his footsteps.
In sports journalism, it isn't what you are, it's what you can make people think you are. And these two men did a masterful job of that.
People don't care if they're wrong, they are originals. Kiper has many spinoffs of what he does like Jeremiah and McShay as well as hundreds of others, but he is the original and right or wrong, when he posts an updated mock, we will read it. Some will point out how wrong he is and has been and he doesn't care. He's in the same business as TV weather forecasters, we expect a certain amount of wrong.
Gosselin is one of my favorites because he admitted years ago he does not watch college football and doesn't know these players unless they make Texas news. What he does is wait until most of the other mocks are out and he talks to the GM's that will take his calls and then he builds his mock and his claim is how many he gets right and he does, only not to the right teams. He's got a good record with the top 32, if the teams they go to isn't important to you.