What you’re describing is data hoarding. I pirate a ton too, but you know what I do with a movie or TV show after I’ve watched it? I delete it. Poof, gone. But it’s still in the most important dataset I have. My memory. To help with the metadata of my own memory, I write down a list of the films I’ve seen. I only keep the movies I really love and want to rewatch (Robocop). That TV show I just finished that was great…
Most of my collection is older stuff, not available on streaming services anymore. Forgotten, almost, in a lot of places since companies can't be bothered to license it anymore.
In an age where a lot of culturally relevant media is not stored on physical copies anymore, preserving what we love for our children is all the more important.