Not sure if any event can be considered individual event. True that only ranked players are invited to WC. But can an invited player participate in WC without the approval of the respective national badminton association? As far as I know, the invitation is addressed to the affiliated organization to send the nominated player - which has the decision whether to allow the player's participation or not. If that the case, I can't consider this an individual event. A lot has been said about the Chinese system. Probably other power houses operate similarly. Match fixing within players of same country is not new. Reprimands were issued before and things haven't change. Like somebody mentioned, it's probably an easy way out for IBF. I hope that other countries will do their best efforts to catch up with the power houses. If this happens then we will be able to see the players true abilities.