Some of you may have not noticed that, but last betas introduced an interesting thing: if a proxy redirects the requests, HFS will show the correct ip instead of the proxy one.
This is what most stunnel users would need: seeing the client ip.
The point is that stunnel is not an http proxy, but works at a lower level, redirecting any tcp (AFAIK, i don't use it).
If you know/find a web proxy software that will eventually do the same job, but a higher level (web proxy indeed).