New Router! (and questions)

So just installed a rooftop relay based on a Rak wireless module. I can now reach over 120 nodes (around 20 “online”).

I guess my question now is…now what?

I come from ham radio, so I was hoping to make come connections and maybe have some conversations, but the best I got was a single reply to a CQ, but I got no response from my follow-up.

Does anybody actually have conversations over the general Meshtastic channel? Is it all encrypted channels? Or is nobody talking at all?

Is there any way to determine how much traffic my router is handling?

This is in Seattle, BTW.