It seems that logic and sense are somewhat lacking in some posts.
In this particular case, LD was authorized by the Tournament organizers to withdraw on Malaysian medical opinions. No matter what rules you propose, short of a machine rendered opinion, LD's withdrawal was legitimate and would not have been penalized under any rules, or be compelled to play in the tournament.
Also, it's a laugh to say that pro players can make their own decisions. Yeah, they might be free from their associations. Even then, don't forget that particiation in events like Asian Games and Olympic Games will always be controlled by the associations.
Even being pros, players still must answer to their sponsors. There is no lack of cases where players were coerced to particiapte in events by their sponsors, to the detriment of their health. It wouldn't surprise me if pro players are asked to give up certain events, if need be, to guarantee participation and performance at events where their sponsors have key interest.
Even on a persoanl level, imagine that as if LD is totally free to make his own decision. Why would he risk aggregating an injury for a MO title at the expense of Olympic glory that can mean millions for years? Campared to a gold medal at London 2012, even the giant prize at KO is insignificant.
LD walked in China, in Hong Kong. His walk at MO is no more offensive than his walk on home soil.
Just to be clear, I am not advocating that players can be disrespectful to any event. I am just as disappointed, but perhaps not as angry, as the next person for not seeing the showdown between LD and LCW. But, please think calmly for a moment:
(1) It is far from conclusive that LD acted in malice. In fact, the official, MO offical, not CBA/LYB/LD's mom, opinion was that he wasn't.
(2) before blaming the badmintion organizations or political systems, be aware that a personal, commercial decision made free of polictical influence may result in the same outcome.
Now, if anyone has any clever idea to scientifically approve or disapprove a player's withdrawal, keep them coming. It helps to test your ideas on, say, LD's withdrwals at CO, HKO, and MO to see if it can produce any meaningful results.