According to one radio talk show host this morning, some podcasts are captivating because sometimes, "there's something compelling about listening to a weirdo...We're all a little bit weird."
The host then clarified that "there's a difference between being a strange bird and a total nutjob." It was wise of him to claim that "nutjob talk" doesn't happen at his station because it's a serious news/talk outlet.
Admittedly, eccentricity needs at least some broad parameters.