To explain this a bit further as the question has been coming up lately: We ban for threats of violence, excessive personal attacks, breaking the law, and other such things. We cannot police trading, so trading issues alone will never result in a ban. While we provide tools like trade feedback to help, trading is always "at your own risk."
This is why it's SO important to leave bad feedback when bad things happen, and why we work so hard to try and prevent people from having multiple accounts. Unfortunately,
lucas1801 (first account) created
Saugusbrewer (second account) before we had all the technology we have now to detect duplicate accounts.