I, for one, am tired of web pages being able to know things about the environment in which I view them outside of their sandbox. Orientation, battery, point:pixel ratio, user-agent, referer- now UI display preferences.
I should be able to turn all of these off and make my browser indistinguishable from any other save for IP address if I so choose. This stuff just keeps rolling down the fingerprinting hill. Pretty soon they won’t need cookies at all.
Canvas fingerprinting along with most of these issues were solved with Safari 12 on both Mac OS and iOS. If you don't want to be fingerprinted, consider switching to it.
Obviously there are some things that aren't yet anonymized in Safari 12, but it's good enough.
Safari’s code exec history (compared to Chrome) is enough to keep me from switching back, even if it is better at privacy in the not-execing-malicious-code typical use case.
I should be able to turn all of these off and make my browser indistinguishable from any other save for IP address if I so choose. This stuff just keeps rolling down the fingerprinting hill. Pretty soon they won’t need cookies at all.