I can't post up a reply to the real person, it would just be too harsh, but it does bug me. They posted on FB about accomplishing a virtual Everesting. Cool.
I look at the data, average of what appears to be 150w while ascending. This was on Alpe du Zwift. I did the math, and even on a 34/36 gear, you'd be at 40rpm during the 14% grades and 60rpm on the overall average.
Effectively, they altered the trainer difficulty low enough to make it work. Which to me, is NOT a virtual Everesting. It's a monumental waste of 14 hours of pain to not accomplish what you claim you did.
Again, it would be too brutal or mean to point this out, but I could NEVER spend 14 hours doing something if it was essentially a compromise or pretty much a "fake".
The official grey stripe rules for v-Everesting are 100% trainer difficulty. If you don't own a nice enough trainer for 100% difficulty and actual % grade of the Alpe, you must choose a shallower climb.