It's a sad fact of the modern internet age that a lot of the people "fighting", heading up the movements, and developing for internet freedom, free and open source software, site archival, data privacy, the TOR project, etc. are pedo trannies and thus sure to betray everything they claim to care about the moment it's convenient. Frankly, people like Josh are an anomaly and not the norm. It's really no wonder the whole thing is going to hell in a hand-basket.
Ultimately, the only true way to archive what you think needs preserving is to do it yourself. Of course, no individual can do that for everything, and it was only a matter of time that big services like Wayback would be compromised, given their central nature. Not that I think decentralizing data across a blockchain would achieve long-term tangible results though I'm sure some bright-eyed crypto investors might get suckered out of their cash in the short term for such a dream, before the rug gets pulled out from under them.