Meaning of request_level parameter

[Gobot1234]

enum EMsgGCAccountPrivacyRequestLevel_t
{
    k_EMsgGCAccountPrivacySettingsValue_Public_All =        0,                  // Requesting data that is already easily available to everybody (e.g. persona name)
    k_EMsgGCAccountPrivacySettingsValue_Public_Shared =     0x10,               // Setting can be shared with public
    k_EMsgGCAccountPrivacySettingsValue_Friends_Only =      0x20,               // Setting shared with friends
    k_EMsgGCAccountPrivacySettingsValue_Private_All =       0x80,               // All information that should already be available to the owner
};