Definitely data hoarding is a big part of it for me. I seem to be instinctively getting myself setup for some sort of doomsday scenario where the Internet is gone, but power still works and I have enough leisure time to binge watch movies lol.
But yeah I also have things like offline Wikipedia and Project Gutenberg with Kiwix, and I don’t pirate books but I do DRM strip them so I can keep a permanent archive and stuff like that.