I love that people are posting on the internet challenges like "track me big brother!". The reams of personal data available to advertisers, corporate interests, private individuals and yes, government agencies just by logging into Bike Forums is enough to blow my mind.
Attempting to disappear on your bike sans cell phone, sans internet, sans credit/debit cards merely identifies you as, "Oh, yeah, the guy on the bike who pays cash for everything." while you're captured on camera at every convenience store and supermarket you shop in.
Let's face it privacy, even with regards to where and when you have been somewhere, is rapidly disappearing and there isn't much any of us can do about it other than create illusions of control like having a land line for "emergency purposes only."- yeah, good luck with that.