Re:Google Now Using ReCAPTCHA To Decode Street View Addresses
by hbar on Thursday March 29, 2012 @10:05PM
(#3774178)
Usually if I input an address into Google maps, it places a marker somewhere near the actual address. If I use street view it seems to point me in a random direction and usually not toward the address I wanted. I think this is aimed at that.
Recaptcha pairs a known with an unknown to verify, maybe the addresses are the known factor.