Well, I guess not everything ...
The bottom line, is the more you trade, the greater the chance you will encounter an unpleasant trade experience.
Combined, we've had 100's of successful trades here at CB, with only a few which didn't go how we would have hoped.
I won't trade with anyone, unless I hear enough good trader comments on them to take the risk, and would never do a trade with someone new to the boards.
I'd recommend starting with small trades until you've built a relationship with a few good traders over time. If you feel you have been ripped off, try to settle the matter by email.
Often, perceived rip-offs are only misunderstandings.
If that doesn't work, you might try consulting by email with some of the more experienced traders who can help resolve the matter.
And above all ... if you 'FOR ANY REASON, AT ANY TIME' you feel that you cannot old up your end of a trade or box pass, don't even get involved. If you commit to a trade or box pass ... follow through with it, no matter what it takes. There is no excuse. Your reputation is on the line, and once that is tainted ... you are basically finished.
It will be very hard for anyone to ever trust you again ...