Isn't game sharing originally used for rebuying software or game software to a new PS3 you purchased, if your old one broke or is full or something?
Nope. That's not "Gamesharing". Here is Sony's definition of "Gamesharing" according to the PSN Terms of Service:
You must keep your password and other account details secret (other than your Online ID), and not share them with anyone else, to prevent unauthorised use of your Sony Entertainment Network account. If you share account details with someone who uses your account in breach of these Conditions or we believe that your account has been compromised, your account and/or access to Sony Entertainment Network may be suspended or terminated.
Yea I heard thats the maximum penatly for game sharing, is to get banned from psn. I also heard that if you send in your broken PS3 to get fixed by sony, that they will not fix it, but you might not get banned. But game sharing is stealing, I don't see how people can't see that it's stealing. It's like you made a video game, and some one keeps making duplicates of it, then giving them away. You will never make any money.