Your question honestly got me thinking. If everything goes completely sideways there are a number of shuttering options I can think of.

One is to turn off any new uploads, and just serve the existing content, presumably the bandwidth on old content would be much lower - until some sustainable plan can be devised.

Last resort is to approach the ArchiveTeam mentioned here to see if and we could to setup a maintenance service.

To your side note, yes, I want to promote it on Reddit, as soon as I've added a few more features - like donations.