That wasn't the actual problem we have with ReCaptcha, Google
A spokesdrone for the evil empire wrote:
"The information collected in connection with your use of the service will be used for improving reCAPTCHA and for general security purposes. It will not be used for personalized advertising by Google."
Right. So you won't be using the data collected during ReCaptcha harassment to deliver ads, but you will use ReCaptcha-based denial of service as punishment for the person not allowing collection of data used for personalized advertising by Google at all other times. Got it.