I heard about this from my German accountant a few months ago. It seems to be causing headaches in a lot of different places for a lot of different people. Thanks for raising awareness for this.

I will go look at the GitHub site as well, but I think it would be worth having User Stories for services/products to the US as EU residents. Does this change anything in that direction?
Also, since so many ebook sales go through Amazon as a “distributor”, i would be interested in the responsibility for VAT still falls to the (self-published) author or if Amazon just taks the VAT cut and deals with it.