Honestly, I don't have the problem with the commodification of my data - if they can make money from it and provide me with things that are useful, so be it. However, I don't think many people really understand what's happening.
Presumably with the caveats: They don't leak your data, and they don't use it in any of the multitude of legal manners that you probably haven't considered but would disapprove of if you had considered them. Oh, and that the data doesn't incriminate you in something you didn't do. Basically, you're relying on a combination of the good nature of a morally neutral corporation, and luck. You may be lucky, you may not.
