Sure, but how long until the sites that require an email to set up a new account add this to their list of blocked providers (or just switch to requiring a sms

Sure, but how long until the sites that require an email to set up a new account add this to their list of blocked providers (or just switch to requiring a sms number like some of the bigger sites already do)? Or ar least I'm assuming that's a primary use case for something like this.