Comment by charcircuit

Your issue is you are defining spyware too broadly. This is not spying on users, but rather 2 companies partnering and sharing data to result in either a better ads system or better understanding on how ads are performing. This is a positive value to society and the commons. Wasting space in a site or app with an ad that won't convert is the true tragedy of the commons. It's a waste of time and money for all parties involved.