Fantmx has a valid point, however blunt that point may be. Software piracy just gives the publishers and manufacturers all the more reason to try and prevent console modding. While an Xbox mod opens up the possibility of quality homebrew applications (XBMC probably being the flagship) and complete alternate operating systems (Linux) it also provides the end user the ability to circumvent anti-piracy measures. This means less revenue for anyone tied to the design, production, manufacturing, marketing, distribution and sales of software. It gives the modding community a bad name. It stands to reason that each person at some point in their lives will be pirating something, whether they are aware of what they are doing or not. Be it mass producing duplicates of a major OS, creating a keygen, photo copying pages of a book or creating a mix tape for a friend. This does not make it right, it is a violation of the user agreements and (at least in the US) copyright laws. A game is property of a creator/publisher. Use of the property without the consent (given or purchased) of the owner is theft. I think software, music and sometimes text fall into a mental grey area since a duplicate can be made and the original not be altered. Nothing physical is "missing," although something has still been obtained without the owner's permission. While I can't find any forum rules post that would ban the discussion of piracy, it is frowned upon. Some frown more harshly than others, especially when the receiving party makes little effort to mask their intentions.
By the way, when you traded in your game you also traded in your license to use it. You have openly stated that you no longer possess the rights to the software on your hard drive. Congratulations on openly admitting to software theft.
-Whoopin'