You should go back and read my post more closely because I said nothing about the credibility of the account, I was talking about the credibility of right wing talk radio as a source.
When a highly credible publication like the Washington Post or New York Times uses anonymous sources this is credible because they've built up a reputation for integrity and high quality journalism over the course of decades. Right wing talk radio has also built up a reputation over decades, but it's about the worst reputation you can imagine. It's a refuge for psychos, cranks, and conspiracy theorists. Therefore, when an actually credible journalistic enterprise cites an anonymous source, I judge that to be generally credible because the WaPo or the Times is putting their reputation behind it. When right wing talk radio cites an anonymous source I ignore it because they have literally zero credibility. Anyone who listens to right wing radio and believes a word of it is a moron.
I also suspect you don't know what hearsay is.