Hosting videogames on a dedicated box for me and the boys when I was 16 got me more interested in networking and when I had finished my mostly unrelated education, I pivoted hard to IT. I don’t currently work in IT and I don’t know if I ever will again because my handicap and location make it hard to find jobs but essentially:
Self-hosting came first, then came the tech ‘background’.
If the torrenting is moved entirely within Tor, and pirates hosted Relays alongside their seedboxes, then we would have the bandwidth to sustain it and not be constrained by the exit relays.