You wrote about deplatforming-- heads up that DigitalOcean does deplatform people. I have direct firsthand knowledge of DigitalOcean deplatforming a security disclosure professional reporting a root breach bug. For your secure backups, I can suggest Tarsnap by Colin Percival, who's a security expert and a frequent contributor on Hacker News. I don't get anything for recommending Tarsnap; I'm just a customer. https://…
From their site:
"The Tarsnap service is built on top of the solid platform provided by Amazon Web Services."