Google Chairman Eric Schmidt made a mistake of telling Andy Carvin at a public Q&A that G+ was built primarily as an identity service .
Schmidt was responding to a question at the Edinburgh International TV Festival about how Google justifies its real names policy when it could be putting people at risk.
Schmidt said that Google depended on people using their real names if the search outfit was going to build future products that leverage that information.
If people are are concerned about their safety, G+ is completely optional and no-one was forcing anyone to use it. People at risk shouldn't use G+, he said.
Schmidt said that the internet would be better if we knew you were a real person rather than a dog or a fake person. He said that people are just evil and we should be able to ID them and rank them downward.
In other words, Google wants to use Google+ to link services and products to its users and it needs their real names to do that. If you are on it just to talk to your mates, you might find that Google starts to know more about you than Facebook.