With that, how good is LL in keeping the Privacy Act of 1974?
The Privacy Act of 1974 applies to government agencies
only, and basically says that if a government agency requests your SSN, they must provide a disclosure notice informing you why they are asking for it, which laws apply, and what they will do with it.
There is no law that bans private organizations or businesses from requesting your SSN. You are not obligated to provide it, but they are also not obligated to render their service to you if you refuse to provide it.
http://www.cpsr.org/cpsr/privacy/ssn...ItIllegalToAsk