It should be a requirement that people are shown that they've been reported for cheating. So that if they aren't, they seek to resolve the issue which might be causing people to think this, or if they are they can know that they will be banned after 15 infractions for maybe 3 months. the current system has the same impact as the police system in some countries, pretty much a marshmallow thrown at a brick wall.
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People would treat the infraction counter as a high score.