Comment by neop1x

For those who are unaware of how big of a problem fingerprinting is, there is an EFF website [1]. EU cookie policy is nothing compared to this. There are libraries like fingerprintjs [2] which can generate a pretty stable visitor ID.

If you change or alter some browser APIs in order to make your browser less unique, some payment processors webs may stop working. And webs proxied through CloudFlare will constantly display "Checking if the site connection is secure" page, sometimes in an infinite loop where even solving their captchas won't help.

[1] https://coveryourtracks.eff.org/

[2] https://fingerprint.com/