Earlier quoted context omitted.
My understanding is income tax and income is public in many of these countries.
You've got to be kidding me. Like if I have somebody's name I can just call up their government and ask what their salary is? I find that hard to believe. Please name these countries.
"As part of Finland’s celebrated transparency, any member of the public can call up the local tax office to enquire about a total stranger’s annual income and tax contributions." - https://yle.fi/uutiset/osasto/news/in_finland_all_it_takes_i...
Also tax and income data for everyone earning over 100 000€ a year will be posted publicly online (with an option to opt-out).