Comment by ynniv

cheald has an excellent comment regarding MessagePack, JSON, and Protocol Buffers in the post from 15 hours ago: http://news.ycombinator.com/item?id=4091051

   MessagePack is not smaller than gzip'd JSON
   MessagePack is not faster than JSON when a browser is involved

Other comments from that post include:

   MessagePack is not human readable
   MessagePack has issues with UTF-8
   Small packets also have significant TCP/IP overhead

Really, anyone who hasn't read the other comments should: http://news.ycombinator.com/item?id=4090831