If you change it to:
`if ( !is_user_logged_in() || ( !is_super_admin() && ( $user_id != $bp->loggedin_user->id ) ) )
/****Adjusted value to display any blogs that do not require logging in to view. (Original value = 1)****/
$hidden_sql = “AND wb.public > -1”;`
It will show any blog that doesn’t require a login. You can change the -1 to what every level of privacy you want.