read the message in the top right corner with the caution sign:
http://railsforum.com/
if i undertake the ttf 2.0 challenge, i will make a RoR forum that's better than punbb. by the way, since when is coding forum software difficult?
note: i realize that ttf isn't "up to par" with punbb, but wlwlv2 was very close, even though it was blog software. point is that coding forums isn't difficult, nor is it much more complicated (if at all) than a good blog.
I think TTF is good enough. It doesn't have loads of features but has essential ones. Am happy. And am kinda minimalist. My 2 cents. Also coding a forums might be east, but only a few actually do it. :)