My main concern isn't CPU performance, but that I don't want to spend any of my own time moderating, and just let on people and robots I trust, if anyone at all

My main concern isn't CPU performance, but that I don't want to spend any of my own time moderating, and just let on people and robots I trust, if anyone at all. Sounds like it's easy to install on the cloud. Would it make sense to run it on a home server with a good broadband consumer internet connection like fiber? Is there a lot of traffic normally, pushing or pulling or polling?