Well, you can say more than your public is able to see - but given they won't see, they may stop looking.
Yup.
And please note that I don't try to make the claim that selfies (the term itself a reduction of "self portrait") are art, or aren't art, just that it's something that is eminently understandable.
I also skipped this point, but I think it's a nice tongue-in-cheek comment to the entire discussion:
Renoir and other famous painters were apparently enamoured by selfies. And they used sticks to do it.