It appears Sony is cracking down on those who are sharing their PSN identification and password to grant select items in PlayStation Home.Sponsored Links
PSN game sharing is also labeled as violating the ToS later in the PS Forum thread (linked above).
Community Manager CydoniaX stated the following:
As many of you are already aware, there are members of our community who are requesting your PSN identification and password to grant select items in Home.
We would like to remind you that the Home staff will never ask you for your password, or any other personal information in Home.
The members of the community doing so are participating in activities that violate our terms of service. This is wrong, illegal, and most definitely NOT OK, and we will be handling these offenses accordingly.
Please be assured that we know who has done what. We know that many of you who participated in this are also some of our most dedicated and enthusiastic Home users and might not have been fully aware of the ramifications of your actions.
More PlayStation 3 News...