I think that how the rules are enforced is different for each regional. I know at VCU, we usually don't have many rule breakers. A few DQ's now and then, but nothing 100% intentional. I think that Rule breaking affecting your score is an ok method...
What first should do is design a game where something will happen to the opposing team's advantage if rules are broken

Cept then everyone would be trying to make the other team cheat...
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-=Sachiel7=-

There's no such thing as being too simple!
Look for Team #1132, RAPTAR Robotics at the VCU Regional this year!