I agree that the use of ccTLDs by people who are not from a given country is OK - like having a .it or .me or a .tv domain as an American or a Brit etc. However the specific case of .io is, to put it politely, rather complicated.
Sure. Tuvalu made good income from .tv, There's a vibrant market in ideas out there. It's just a bit odd that it existed as a grandfathered in thing, And then the grandfathering remained after the raison d'etre ended.
Haha I love how most of the internet just agrees that tokelau is like the outcast TLD of the internet. I've seen filters alert just from accessing a .tk because of them being free and maybe still are. I think it used to be Dot.tk giving them away