Well, you can contribute, and it will only cost you about 5$ / month! Tor, by design, has some latency issues, and can also have exit node bottlenecks. I think people only run intermediate relays because of a "myth" that you'll get raided at 4 am if you run one. It has happened in the past to some operators, however, in this blog, I wanted to show that it's not always that way.