> Also signing up usually involves more than a login/password (address, phone no., etc)
No. Using some features may involve more than a login/password, but even on most ecommerce site the signup itself is just a login and a password. Amazon needs a name (whatever), an email and a password. That's it.
No. Using some features may involve more than a login/password, but even on most ecommerce site the signup itself is just a login and a password. Amazon needs a name (whatever), an email and a password. That's it.