What are you implying here? That @gabe should never have bothered with running a server? What about the server you are connected to right now? Should they shut down because of what may travel across it?
No.
They're protected under the same rules as somebody running a WiFi hotspot at a coffee shop. As long as they are doing everything within reason to be a good steward of their local network (which is what Gabe is doing) then they are protected.