We hear all the time about startups running out of cash. Internet folk pour their hard work and build communities for then the site to just decide to stop the service.
Good examples of this include 500px who decided to ditch photographers that license their photos under Creative Commons.
On the positive, the Wayback Machine will index all of the lost CC photos thanks to a pool of volunteers who helped archive the entirety of 500px.
3 terabytes of Creative Commons photos going into the Wayback machine thanks to the efforts of dozens of volunteers slamming from NO warning and going for 48 hours straight. Amazing work, everyone. It's going to take a while to understand exactly what we got.— Jason Scott (@textfiles) 1 July 2018
500px pool archiving
ArchiveTeam Warrior is a virtual machine that allows even novice computer users to get involved in the archiving process. All you need is VirtualBox, a sizeable disk image and be able to use a web graphical interface.
It is super easy to use. A screenshot below shows the UI for the warrior.