@drq @BigFoxBoss @mo but microblogging is not really useful for notekeeping because of timelines with big amount of small posts and fedi is more not useful because it is much volatile (disappearing instances, removing users).
For notekeeping we need change p2p federation model to allow not only fetch posts from original instance, but search and fetch posts cache for other instances, allowing distributed storage of dead instances data. And even add searching support to federation (maybe like dc++ search), not only searching original posts. But this is not fedi users to want. I think, most instances will be against such search. Fedi is not global db. It's just place for discussions and memes.