I agree that people just move on. You see that even with some of the older freebies here on Rendo... the image is now replaced by a question mark, and if you try to download, the source no longer exists. No one is obligated to maintain their free items forever. But if I wanted to keep playing with the free and experimental stuff posted by fellow hobbyists, I'm sure the contents of ShareCG and other remaining free sources would outlast my interest in doing so.