I've lurked for a while in [EMAIL PROTECTED] hoping that that would be the right place for such discussions, and, when they happen, the subscribers are usually pretty clued-in and interested. Perhaps it is the natural place to discuss web-apps? At least until traffic is sufficient that the Debian Apache team kicks us out. It ensures we are 'in touch' with the httpd maintainers, instead of being in an echo chamber.
cheers, martin