Not wrong, but 30 years are probably good enough for most backup cases

Also I feel like at that point you might as well go tape rather than fiddle around with 40 Blu-rays.

Mastodon and the fediverse are nerd shit with massive usability issues. Even I gave up on Mastodon and I would consider myself far more willing to put up with shit than the average user will ever be. The mass will - never - migrate to the fediverse and in many ways, especially looking at moderation issues, that is probably a good thing.