I think having to rely on an archive makes this a lot less valuable. If I find something in 2033 and want to prove it existed in 2023, I think that’s going to be much harder if I have to rely on the thing itself being archived in 2023, in an archive that still exists in 2033; compared to just relying on the thing being timestamped in 2023.
I also think if you’re relying on the Internet Archive, the argument that this is urgent becomes weaker. (And honestly I didn’t find it compelling to begin with, though not for legible reasons I could point at.) Consider three possibilities, for something that will be created in May 2023:
We can prove it was created no later than May 2023.
We can prove it was created no later than June 2023.
We can prove it was created no later than June 2023; and that in June 2023, the Internet Archive claimed it was created no later than May 2023.
A one-month delay brings you from (1) to (2) if the IA isn’t involved. But if they are, it brings you from (1) to (3). As long as you set it up before IA goes rogue, the cost of delay is lower.
So would you say that although you have less faith in Ben than before, Alice and Chloe should have more faith in him? That seems wrong to me; I feel like “faith” in context should cash out as something less interpersonal than that? Like it should be a prediction about how Ben will act in future situations. Then “Alice should have more faith in Ben than me” sounds like a prediction that in future Ben will favor team Alice over team Chris; but that’s not a prediction I’d make and I don’t think it’s a prediction you’d make.
(It does seem reasonable to predict something like “in future, Ben will favor team person-who-was-hurt over team person-on-sidelines-who...”. But I don’t think that’s where you’re going with this either?)