Selene Yeager just forwarded me this article: "Britain's first male e-racing national champion stripped of title following data manipulation charges". He admits to using an ANT+ simulator to rack up easy miles to "earn" a fancy bike which gives an in-game performance boost.
Since I presented on how easy it is to cheat at Zwift using ANT+ manipulations I shouldn't be surprised but, yeah, I am surprised. Running 2000 watts for hours on end to climb 50,000 meters is rather obvious!