RCer vs. R/C Hobbyist vs. RC Enthusiast: What's the Difference?

There are three different names for fans of radio controlled vehicles, but what's the difference? We open the hobbyist community  dictionary and thesaurus and break down the jargon, defining the differences between a Racer, a R/C Hobbyist, and a RC Enthusiast in this episode of the RC Deep Dive podcast. Which title do you claim for yourself?