Do people care that much about we use their data? I mean they care a little bit, but I still think given the choice between where we're at technologically and where we'd be if no one had access to users data -- I think the vast majority would take where we're at today.
The funny thing is that I generally wish companies did more with my user data. Why don't events sites do a better job just showing me events it thinks I'll like -- when was the last time I showed any interest in country music? I think customization is a huge value.