Very good idea! I suspect you will see a lot of "privacy" concerned people jumping into thread. This is a catch-22 of sorts. If Signal picks up momentum, peopl

Very good idea! I suspect you will see a lot of "privacy" concerned people jumping into thread. This is a catch-22 of sorts. If Signal picks up momentum, people will gladly give you the gmail id. Until then, they will vocally complain that gmail id and contact list is too dangerous to give away. One approach to get over this initial bump might be to get big CEOs and investors to vouch for the product.