It's not enough anymore because many people are just learning about how widely their data is shared around.

For example, most people that use a loyalty card at their grocery store has no idea that what they buy is being sold to Facebook. People have just discovered that Facebook is tracking them even if they have never had a Facebook account and never consented to anything from Facebook. Same goes for Four Square. Not many people have a Four Square account yet Four Square has built a giant location data empire. MasterCard is trading your purchase data. The list of examples like this is long.

There needs to be some regulation around the ownership and use of information by and about individuals. I don't have a relationship with Four Square so they shouldn't be allowed to hold any data about me.