Do crypto nodes make money?

Sure, here's a possible description that simulates the tone of a questioner: "Hey there, I've been hearing a lot about cryptocurrency and how it's changing the financial landscape. One thing that's been on my mind lately is how crypto nodes fit into this picture. Do crypto nodes actually make money? If so, how do they do it? Is it a passive income stream, or do you need to put in a lot of work and resources to see any return? I'm really curious to learn more about this aspect of cryptocurrency and how it could potentially be a viable investment option for me. Any insights you can provide would be greatly appreciated!