Bumping this after more then a month because I just had it happen again.
Crap trust person (big neg number), most of it due to promoting signature scams, the yobit spam mess from a few months ago, and generally being a jerk.
Nothing to do with buying / selling.

I hate to have to keep looping back to it. But you can be an ass, you can be a spammer, and you can be idiot.
That does not mean you are going to rip people off.

One of the biggest assholes I know IRL is also the most honest.
Would buy / sell / trade stuff with him and not worry at all.
There is not enough money on the planet for me to want to hang out with him outside of business dealings.

-Dave