Depebding on the country, Europe has significantly worse copyright law than the US, to the extent that archiving a web page is illegal.
Fun fact:
In Germany you have to pay a special tax for anything that could be used to violate copyright. It ranges from 0.10€ for USB sticks to 90€ for faster printers to 14,000,000€ for opening up a public library - all going to a bunch of publisher organizations.
And an archive would be doing exactly that: Distributing copyrighted materials.
Moving to Europe is not necessarily a great idea depending on the country they choose. US copyright law is comparatively lenient to some European countries, who can be said to be (much more) controlled by publishers when it comes to copyright.