I don't think reputed companies like Coinbase UK, Ltd. are engaged in illegal activity of selling users' KYC data. All such companies maintain 'Privacy Policy' statement and breach of such statement can land them in big danger.
You should maybe try reading the thread before blindly replying to OP. As I said above, Coinbase have absolutely been selling their customers' data, and have admitted as such:
Also, calling Coinbase reputable is a pretty big stretch. Big? Yes. Well known? Sure. Reputable? No. They sell data, they insider trade, they violate their own rules to list new coins which just so happen to be the bags their owners are holding. They care only about profits and not at all about bitcoin or the community.