atticora has a good answer.
In addition, he created his podcast in 2018, and a youtube channel in 2006.
"Fridman began his podcast in 2018. It was originally titled The Artificial Intelligence Podcast"
It just goes to show that with a little credentials, a little intelligence and consistent effort, after 17 years, goes a long way.
Tell me a case where someone who has all 3, after 17 years didn't have something to show for it.
First mover advantage followed by network effects?
He treats them with respect, asks them thoughtful questions, and puts their answers in front of a large audience of curious people. And how did he get such a large audience? By finding interesting guests, treating them with respect, asking them thoughtful questions, and bringing us their answers.
At best an interviewer's credentials are a poor proxy for how thoughtful their questions might be. Since you can hear the questions themselves why bother with the proxy?