Until Sony revoked the ability to do that, so people went back in to hack them so they could go back to running Linux
They shut it down due to (likely valid) concerns that it could potentially be leveraged to jailbreak the regular PS3 OS and/or run unlicensed commercial games.
They shut it down due to (likely valid) concerns that it could potentially be leveraged to jailbreak the regular PS3 OS and/or run unlicensed commercial games.