I welcome it for two reasons.

First reason is that the transaction is more transparent. Contrast that to what is happening on the internet - in the cafe informed consent is given explicitly instead of implicitly and from often less informed internet users.

Second reason is that it will perhaps unintentionally push into consciousness of people the notion that private information has real, tangible value which would hopefully translate into change of awareness and attitude on the internet to treats to privacy that exist there that I think we both find more nauseating.

Shiru Cafe into every city!