The Chagossians are not by any meaningful standards indigenous. The land was uninhabited when George Washington was rebelling against the British. If the Chagossians are indigenous so are old stock white Americans.

And Mauritius have treated the Chagossians like dirt for decades, with no signs of that changing.

None of this is to deny the Chagossians were extremely ill treated by the British, but the idea that the Mauritanians have any interest in the welfare of the Chagossians is ridiculous.

Hopefully that doesn't happen as not everyone who uses a .io is a tech company. I've been using a .io domain for my personal email for something like a decade now, when I just thought "oh that's a cool TLD" and had no idea it was even a country TLD. I don't much relish the idea of getting soaked for money to stick it to the man when I haven't done anything morally wrong.

I think '.su' is already that precedent, since it had many active domains, recently had active registration, and ICANN has announced plans to phase it out.

https://en.wikipedia.org/wiki/.su

See also '.yu' and friends, which have already been deleted.