Rob Cesternino has made a career out of sharing his insights on "Survivor." Courtesy of Rob Cesternino Rob Cesternino appeared on "Survivor: The Amazon" and "Survivor: All Stars" in 2003 and 2004. He started podcasting in 2010 while looking for a new line of work and launched "Rob Has a Podcast." 15 years later, he's grown a loyal audience through Patreon and expanded "RHAP" into a network of shows. This as-told-to essay is based on a conversation with Rob Cesternino, 47, who appeared on "Survivor: The Amazon" in 2003 and "Survivor: All Stars" in 2004. He went on to launch his podcast, " Rob Has a Podcast ," in 2010 and has since expanded it into a network with dozens of shows and hosts. His book ,"The Tribe and I Have Spoken: The Definitive (Unofficial) Lore and Legacy from the Game's Smartest Surviving Loser," is in stores now. The conversation has been edited for length and clarity. I was a broke college student when "Survivor" premiered in the summer of 2000, and I was obsessed.…