This looks like a good idea, but 1- why do you need my phone number? 2- i dont want to share this website on my fb feed; but if I do not, I cannot see "any" de

This looks like a good idea, but 1- why do you need my phone number? 2- i dont want to share this website on my fb feed; but if I do not, I cannot see "any" detail whatsoever.