I think it might have something to do with the fact that much of Europe has privacy laws that protect their citizens and also makes it so people running nodes there don’t have to kiss up to US companies. Hence why they block those nodes or just give them a huge amount of challenges to solve in hopes to frustrate them. Same with how they put annoying privacy pop-ups on the website in European locations which re-appear every time you login or visit the site.
I know they require them, it’s is the way that they’re implemented that I’m referring to. Like they made it deliberately frustrating. Some of them one a few websites even pop up twice or even three times and you have to click them multiple times to get them to go down.