I like how the new thing seems to be to convince people to give away valuable information for free and brand it as a service to them. Why exactly do I want to tell everyone all the things I buy?
Think about all the things one communicates on a daily basis: where you like to eat lunch, what music you like, what you find fashionable, etc. These things are all communicated in one way or another through your transaction history.
To the extent this information can be parsed and digested, you have a pretty valuable business. Not only does blippy create a foundation for conversation about these things, it actually is the conversation in a lot of ways.
I was equally skeptical. Then I started using it, and I quickly discovered it's value.
That's essentially my assessment. It sounds incredibly shallow, dangerous, and unappealing in general. However, I'm not the target consumer for the vast portion of services and products out there. I don't use Facebook, Twitter, Anheuser Busch products, Windows, etc. yet these products are all widely popular. While this doesn't prove that Blippy is appealing, it demonstrates that the fact that I consider it inhumanly dumb has no bearing on whether the general public will be drawn to it.
I think Blippy will be huge - invest now, and be sure to use your 'Blippy Card' so everyone knows.