It's sad to see so much blasting of UWW on this forum when the real criticism should be leveled at the NCAA who have rendered college wrestling unwatchable. UWW and Nenad Lalovic deserve a lot of credit for making freestyle more exciting than ever before, though the rules could still benefit from a few changes.
1) Cautions as criteria- This needs to get scrapped fast. Offensive scores should always trump passivity warnings.
2) 30 Shot clock timer- The "action extension" to the shot clock is an excellent addition which creates more flurries and scoring opportunities. If you don't want the shot clock extended don't let your opponent penetrate your defenses. Often times it is the person who is not on the shot clock who benefits from this rule as well. Bottom line, UWW wants to encourage action and this modification certainly promotes this objective.
3) Repechage- I agree on the semi-final extension but I bet UWW has IOC-imposed limitations on the number of matches, etc.