Great that you should ask!
One thing that kind of sticks in my craw, so to speak, are arbitrary rules at outlaw matches. RO's, Match Directors, match organizers, left to their own devices will make up all kinds of rules, starting positions, conditions etc., on how a stage should be shot, contrary to what is written on a stage briefing.
IMHO, all stages "should" be able to be shot Freestyle, allowing the shooter to solve a problem/stage, how ever they choose.
Many Outlaw matches, are designed to be shot in only one specific way....."BORING".
Many Outlaw matches allow for arbitrary decisions to be made by RO's...."BOOOOOO"
IPSC has a very defined set of rules that does not allow this type of behavior!