Of course there are why have you asked that? Theres are many useless projects even existing in the market without true use in the industry out there compared to facebook coin itself.
Exactly. Considering the scope of facebook alone, they will have better reach than other crap coins. And thinking of Zuckerberg, he will not let fb coin be branded under shitty ones. They will find ways how to utilise this coin within their platform alone. So yes, I believe there are users that will buy this coin.