After all the groups are gone people will be dispersed to seperate forums around the 'net.
Community Feedback has long been a useful site for MSN related information and also for computer and internet related issues. They made a backup community a long time ago so that people could get in contact during MSN's many outages. That community will continue on. It is now called
Community Feedback (oddly enough).
One thing that worries me about all of this is we have no way to know for sure how long the places we move to will last, how much warning there will be if one closes, how people will be able to find each other. I know that the new CF is creating and maintaining a list of where people have gone. Even better, they will be around after MSN is gone. I think it is a good idea for people to join there, or at least bookmark the site, to ensure that one way or another people can locate each other in case something happens.
Community Feedback has done good work helping people. They have kept lists of safe downloads, have always been around to help people track down and cleanse malware that has installed on computers, have taught people how to maintain their computers as well as how to build and maintain their sites. And it is all volunteer.