Not sure why you're getting down voted was about to post something along the same lines (though admittedly linking to a couple of threads, not just the search). But I don't think everyone on hn would be aware of the d forums (nor that it's a rather magnificent piece of "groupware" with usenet and irc support on top of (or should I say beneath) a quick Web interface.

https://github.com/CyberShadow/DFeed