For example, in Canada, the penalty for non-commercial infringement is generally about 100$, and it can go up to 5000$ maximum (repeat offenders and so on). For commercial infringement, the penalty is of 20 000$.

Furthermore, in Canada, seeding downloaded files via P2P service is of ambiguous legality, with some interpretations saying that as long as you don't advertise or try to share it with as much people as possible (positive action) required to make it illegal. Receiving payment for this would torpedo that defense, which means even higher liability. All in all, it's not a good idea.