I am not sure what the problem was 2 months ago, but last I checked a scammer is someone who goes steals something from someone. Did he steal anything from you?
Then I suggest you check again - as this is simply not the case. Some well respected forum members (gmaxwell, saltyspitoon) explain perfectly how the trust system works here:
https://bitcointalk.org/index.php?topic=825856.20....suggest you give it a read

(Click "Ignore" on the BAN shill fire000)