Do you think Age Groupers ‘dope’ in Ironman Competitions?

Kevin Moats, one of the most successful Age Groupers at Kona in terms of wins and Age Group records is bust for Doping, I wonder how rife this is and always have?

Kevin Moats Banned for Doping (Written by: Dan Empfield Date: Fri Oct 19 2012)

Top age-group athlete Kevin Moats, 58 years old, has been suspended from competition by World Triathlon Corporation for 1 year as a result of a positive test for exogenous testosterone.  The original ban was for 2 years, but the ban was halved by an arbitration panel.
The adverse finding was as a result of a test executed on Moats, out of competition, on January 30, 2012.  The sample failed the threshold for testosterone/epitestosterone ratio.  Moats admitted, at his arbitration hearing, taking supplemental testosterone.  He contends, and has produced documentation, demonstrating that he has been under a doctor’s supervision since 2005 for hypothyroidism and andropause.  However, Moats did not seek a therapeutic use exemption (TUE) prior to the test or at any time prior to the arbitration hearing.