Rob Cesternino has made a career out of sharing his insights on "Survivor."Courtesy of Rob CesterninoRob 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 wi…