I see this common response, but that is not really a valid rebuttable. Companies do not need to sell your data to violate your privacy, in the case of google their entire model is selling their TARGETING, not the data. That is still a violation of privacy. The fact they did not "sell" it to a 3rd party to form the customer profile changes little.

In the case of cloudflare, it is going to be interesting how they continue to justify the free public services to institutional investors now that they are public. I have a feeling there is going to be some strong pressure to either cease the free services, or find away to monetize them which likely will involve some kind of usage of that data maybe not selling per say, but some other kind of targeting or something to add to the profitability of the company.

I am no more comfortable with cloudflare having my data than I am with google or verizion, I have never used any of their DNS services