The germans' attitude to privacy is... incoherent, to put it mildly. People get up in arms about the weirdest things, such as the Google Street View you mention. Thousands of people see an apartment building's facade every day, so what does blurring it on Google Maps give the residents, privacy-wise?
And yet, people are amazingly complacent în other aspects ("War halt immer so"). For example, your apartment's doorbell has to have your last name on it: someone with an unusual name could conceivably be tracked down just by postal code. For another example, when I was blogging, I had to display my full name and address in an Impressum on the website - dox myself, so to speak.
And, of course, the Berlin government forces people to register their address, and allows everyone to query it, because why wouldn't they: