I have a small consulting business and have used the same email address for over three years. It is a Google address. Recently, my account was disabled, yet I don't know why. I have gone through all the processes to restore my account without success. Google tells me that they can disable a person's account at any time, for any reason, even for no reason, and the email that people have sent you over the years is just lost.
I have contacted Google Support time and time again to no avail. There is no live person to talk to, you have to do everything through their online system, and no real person contacts you. Also, you can only enable your account automatically if you have a cell phone, which I don't.
I'm warning everyone now, DO NOT sign up for a Google account unless you don't care if they disable your account and you lose all your email history and new email, with no possible way of recovering it. Think of the ramifications and the effects this has on my business. I have never participated in any email scam, nor have I even used my account to send marketing materials to others. It has been used specifically for communication with my clients, acquaintences and family.
I will never sign up for a Google email account again.