Because both of them suck. They suck thousand times more when they try to reach outside of their native environment, like third-party Facebook comments or third

Because both of them suck. They suck thousand times more when they try to reach outside of their native environment, like third-party Facebook comments or third-party sign up with Facebook/G+. The problem is that both G+ and Facebook try to be the 'ecosystem of the web', and that's wrong and everyone hates that.