It's now been 3 months since this site came public. It is the first one I really got interested in. Many reasons for that: great user interface, permanent activity, interesting questions, valuable answers, and something of a funny gaming/competition flavor with these reputation and badges.
And though I regularly get frustrated: many of the answers and comments left here could lead to constructive dialog, but do not, as Stack Overflow question/answers (and comments) model does not allow such long lead exchange.
I feel there is a major "knowledge" loss somewhere here, and we should find a way to master, reduce or limit this unnecessary increasing in the system's entropy. My first thought was to propose something similar to Facebook's user wall, an idea that was already declined in stackoverflow.uservoice. I am short of any other track, yet being sure there must be a smart way to get closer to a more effective model that would allow a better knowledge collection and dissemination.
I hope somebody here will be smarter than me...
EDIT: as suggested by Chris Lively, question switched to wiki.
EDIT 2: question could be changed to "Should Stack Overflow add Knowledge Dissemination functionalities to ...". This permanent flow of questions and answers must stay 'as is'.