If you want a roll model to look up to as a scam buster I would suggest Tomatocage.  TC always tried to be fair in his ratings and would try to ensure that his ratings were always accurate, eg he would do his due diligence prior to leaving a negative rating, and would never rely on speculation. TC would also only give negative trust when there was clear evidence that there was a scam or a scam attempt, eg someone tried to steal money/property and/or attempted to steal money/property.