There’s a difference between having a camera on your phone and having all of your services tied to one account. Once a picture is taken, you can do anything you want to it and there are any number of apps and services to help you do that. But if megaservice decides you violated some term of service, whether you actually did or not, you stand to lose everything – your email, calendar, wallet, messages, and access to any service that used megaservice for authentication.