dht.go links to https://github.com/jbenet/node-ipfs/blob/master/submodules/ipfs-dht/index.js
which I'm currently porting from JS to Go but there are some quirks on the JS code.

May I ask you what is supposed to be a DHTStream? Currently is not implemented and the closest thing I could find is swarm.Conn.

Also there's issues with peer.ID being a multihash.Multihash which it's underlying type is []byte which can't be used as map keys and you are trying to use it that way, I already informed about this on #8.

You should focus on just one implementation until is finished so other people can port to other languages. Preferably the Go one because it's a static one.