They log everything about the users to prevent someone who is caught from duping again. They might notice your ip but im not sure. It's better you tell your friend to use the account for a few weeks and then start using it at your home.

Originally Posted by Ronin21

They log everything about the users to prevent someone who is caught from duping again.

You said this and then you encourage him to go ahead? WTH?

They log everything. If you can't change your IP then don't do it. You'll get banned eventually.