Not sure I agree. The 8 MB is the recommended upper limit so I don't think anyone is planning to use it for the web traffic. I think its designed to be faster a

Not sure I agree. The 8 MB is the recommended upper limit so I don't think anyone is planning to use it for the web traffic. I think its designed to be faster and have better compression even at lower window size though not sure how low. It most likely perform better than zlib even at 32KB at least faster I would assume. Now if you are a jabber/chat server opening thousands of long running connection there it can be an issue. You already said how even standard zlib doesn't work there.