I have web design clients insisting their viewers be able to use a 'Find us on Facebook' image link to access the client's Facebook Profile without name/password. If I have a Facebook account/profile I can access other Facebook Profile/Wall pages.
Without a Facebook account, visitors will have limited access - essentially an invitation to open 'Join' a Facebook account.
So then, is it true that I must have a Facebook account to have write access (Wall) to any other Facebook account. including groups. Otherwise I may be able to view limited data and have no way to post items/comments.
Google search yields many responses, but no definitive answer to above.