Doping

The only way it could really work is if the UCI said "declare all your past indiscretions, but anything left under the carpet will result in a lifetime ban should it surface from this date..." Then riders are actually incentivised to clear the air. Probably wouldn't work though.

Such an amnesty is currently permitted under the WADA code, so the UCI cannot unilaterally allow one, as the penalty would likely be the expulsion of cycling from the Olympics.

As I understand it, this topic is currently being discussed between the UCI and WADA. I still think truth and reconciliation is an unworkable idea.