Well, it happens that I use 3 addresses currently :)) But I agree that this is uncommon. However, again, don't see how this relates to the point. The fact tha

Well, it happens that I use 3 addresses currently :)) But I agree that this is uncommon. However, again, don't see how this relates to the point. The fact that a given person will likely use a single email address doesn't mean that we all have to use the same email provider. As a matter of fact we don't. Gmail is the largest, but there are many alternatives out there. Unlike for social networks for example.