Art gets lost for a variety of reasons, the artist purges their gallery, a site changes its rules, a site shuts down. Sometimes if you look hard enough you can find something, sometimes you find evidence it existed and sometimes everything is lost to the sands of time. Do you have anything you wished you saved? Do you have anything you swear you saw at one point and were never able to find again? Any other thoughts on lost art?
I was able to save something one by searching for it on archive.org. It took me a few tries to get the correct date but I got the pic and story.
If its FA or SF, if you know where to look, there are fairly extensive archives.