You forgot to mention the aliases

Cat

It’s bad op-sec and general privacy. What if you don’t want anybody knowing you use a old burner phone? Some people even hide there timezone even though millions of people have the same one, RFP hides your timezone aswell. People don’t share there birthday even though they aren’t the only person with it even without the year. It’s about connecting the dots with multiple pieces of information, and this is one of them.

Wouldn’t you have to do it constantly?

X is unusable without an account, It always nags you to make one no matter what.

Love that you mentioned Libredirect! I don’t like how maps redirects to OpenStreetMap though, why not just redirect to Duck Maps, which uses Apple Maps.