Please note, on mobile I have to turn my phone sideways to activate landscape mode to be able to see it as it's slightly too far right, but on a computer its perfectly visible to me.
And yeah, not being on Facebook would cause issues unless the content is marked as 'Public'.
My mum is not on FB and when I send her funny stuff from Facebook she can't see it and it asks her to log in unless the content is open in the posters privacy settings.