I am not going to lie and tell that I do not know SamTsuedo - I have done business with him on several occasions. I have never had any issues, and all our transactions were flawless. When he contacted me to do him a favour and be an escrow for 0.2 BTC , I agreed to it.
Now just think about how insane would it be for me to try to steal 0.2 BTC from the known scammer, and compromise my whole past 2 years as a respected member of the community. Yes I made a mistake, I did not check who was the party in question, and agreed to be an escrow in order to return a favor to SamTsuedo because he offered me a couple of good deals recently (involving Amazon Gift Cards).
Ok, fair enough, but I find your story a bit odd. If you can digitally sign the following address (the one you used for a number of give-away threads when you first started posting a about a year ago), I'll remove your negative Trust and ask that others do the same:
13uW8z43KHPYHPLMCpHfDCMBi29gRTfBMp
However, if you cannot sign this address for whatever reason, the rating will remain.