The "View unanswered posts" is a good place to start, if you really really really want to do a good deed and answer a question no matter what... No seriously, I hardly use it all.
Personally I have the "View active topics" on my first bookmark of the si-community, i.e. I use that page as my personal "de facto" frontpage. Changing the "View active topics" into something more usable (as in "View active POSTS") would be nice, but lacking the time and skill to dig deep into the php of the forum software I doubt this will be possible
(Partly because we can't/don't want to implement phpBB-addons any more, for various reasons).
And, again personally, I don't like the whole "frontpage" idea, like the XSIBase has, all that much. I have the XSIBase bookmarked at http://www.xsibase.com/forum/
. Problematic about "frontpages" is that they need to be separately maintained.