I keep wanting to be able to recommend the 'best' way for people (who don't like command lines) to get research stuff online. Is it Flickr, Zenodo, Internet Archive, Wikimedia, and Github? Or is it a shared hosting account on Dreamhost, running MediaWiki, WordPress, and Piwigo? I'd rather the latter! Is it really that hard to set up your own website? (I don't think so, but I probably can't see what I can't see.)
Anyway, even if running your own website, one should still be putting stuff on Wikimedia projects. And even if not using it for everything, Flickr is a good place for photos (in Australia) because you can add them to the Australia in Pictures group and they'll turn up in searches on Trove. The Internet Archive, even if not a primary and cited place for research materials, is a great place to upload wikis' public page dumps. So it really seems that the remaining trouble with self-hosting websites is that they're fragile and subject to complete loss if you abandon them (i.e. stop paying the bills).
My current mitigation to my own sites' reliance on me is to create annual dumps in multiple formats, including uploading public stuff to IA, and printing some things, and burning all to Blu-ray discs that get stored in polypropylene sleeves in the dark in places I can forget to throw them out. (Of course, I deal in tiny amounts of data, and no video.)
What was it Robert Graves said in I, Claudius about the best way to ensure the survival of a document being to just leave it sitting on ones desk and not try at all to do anything special — because it's all perfectly random anyway as to what persists, and we can not influence the universe in any meaningful way?