One of the most voted "must have" questions from SuperUser: http://superuser.com/questions/1241/what-are-some-must-have-windows-programs is now illustrating why such thing doesn't match to the SOFU sites.
Sure, it works good for the first two pages, and you have a list of useful software. But with now soon 10 pages, you realize that it's not working anymore. It is really hard to know what was already said or not, and either way, new additions will remain lost at the end, because only a few people will both to look at all pages and vote. Most will see the first page, see their usual programs, eventually add to their scores, but it doesn't matter. People claimed such questions provide a dynamic and evolving list, but this is not true. All you have is a page of most useful software, which won't move anymore.
This question has become a perfect illustration of the reason why such questions are not working on SOFU sites. Even a successful one like that is bound to be only a page of preferred programs, then regular bumps with programs which will never get votes, due to the fact that these sites are not really appropriate for answers on several pages.