Well st--m is under 4c now and they keep going somehow. It comes down to whether the witnesses and node owners will keep going. Even if the sites shut down we could use apps. What would you be giving up? I'd sure miss the people. I've been on other platforms that shut down (Google+, Tsu etc) and the communities got fragmented so I lost touch with people. Hive is my main online home and I'd be reluctant to give it up.