I guess my approach is more P2P, more simplicity, shortness and clarity focused, as well as perhaps emphasizing general networking less-- I sacrifice more, I'm fine with 3-6 second delays on all messages, for example. I guess I also emphasize scale in that I intend to have 10,000+ connection open simultaneously on every peer, and because of this you don't even always need the retransmission aspect, since the person you want to talk to might be in the group of 10,000 that you send a message to every second.

So in my thing the mixing is less important and the retransmission aspect is only needed when the network grows so big that you, when you connect don't happen to randomly end up directly peering with the person you want to talk to.

My target size is also <500 lines, and I think <200 is feasible, whereas Freenet is apparently 192,000 lines.