Yes, they have registered a company in The Netherlands:
https://support.discord.com/hc/en-us/articles/4410339409047-...
https://www.kvk.nl/orderstraat/product-kiezen/?kvknummer=822...
https://support.discord.com/hc/en-us/articles/4410339409047-...
https://www.kvk.nl/orderstraat/product-kiezen/?kvknummer=822...
This entirely renders the question of jurisdiction moot.
It's frustrating that the response to this question has been so negative. It's like even asking this question is forbidden.