> most non-tech people simply click the X to make it go away, and a percentage of all visitors will sign up. This is likely true, but only if there's an X. Fac

> most non-tech people simply click the X to make it go away, and a percentage of all visitors will sign up. This is likely true, but only if there's an X. Facebook's growing sign-in box as you scroll down is not easily clicked away from.