Thanks! Interesting to hear about your experience as well. By requests per seconds you mean packets? I was curious and with 330 players playing on DDNet right now[1] we get ~7400 packets/s incoming, ~8300 packets/s outgoing.
My guess is that he's talking about HTTP requests.
Yes, I am talking about HTTP requests. We're just exploring moving over to web sockets, the original implementations were done before that was practical on mobile networks.