Originally Posted by
kaffeine
Accounts are for personal use. The way I see it, you don't have the right to give it to anybody else, no matter how trusted you think he is.
Put yourself in your inviter's place. He invited you because he trusts you. He doesn't know your friend and even if he did, maybe he doesn't trust him like he trusts you. When you give away/trade your account, you can also damage people a part from you and your inviter. Everyone in the tree is at risk.
So, instead of helping someone out, you are really putting at risk many others...