I can definitely get on board with this strategy, although I usually try to buy hard copies of the authors who are still kicking and writing.
Check out annas-archive.org to get digital backups of books you already own that may be otherwise protected by drm. Definitely don’t use it to pirate books. Piracy is bad.
Edit:
Also you can use calibre to manage your book library outside of various large book providers.
This is exactly the energy I hope for in a shitposting mod. TYFYS