I will start with talking about my country, Romania:
We are a small-medium nation just at the border of the Balkans with Eastern Europe. In general, foreign pop culture used to, and still does, comes with a very long delay, sometimes of even 5-10 years. When we were getting cartoons as children, many of them were already at their god knows how much-th rerun in th US and the West (yes, we grew up with Cartoon Network, Getix and later Disney Channel in the early 2000s), and we were never getting a full series, just a few seasons that were dubbed. Anime broadcasting was not a thing, at least not since the end of 1990s on Romanian television. Even today, many people would not understand if you made a reference from a foreign series, as nowadays it is mostly on us, the teenagers, thanks to the internet, to see what is going on outside.
And for this reason, for a lot of time, I thought Touhou would be a completely niche series, that nobody heard of. Things changed though when I found out apparently there is a Romanian Discord server dedicated to Touhou and its community. The series is still very much underground here, as our pop culture seems to be very much still isolationist (possibly a result of 45 years of communism, followed by 30 years of uncertain democracy), and so people were not too interested in foreign pop culture.
Anyway, a surprise to be sure, but a welcome one:
(this is not a promotion; I am simply amazed a community exists at all in here)