As far as NOSTR goes, I think we would still have NOSTR if we didn't have Facebook. NOSTR is more based off of Twitter than Facebook and Facebook was still university students only until 2006 when Twitter was rolled out. So, regardless of whether or not Facebook existed, Twitter still would have existed. Given that Twitter is, to some extent, the model for NOSTR, and given that Twitter became so corrupt, I think NOSTR still would have manifested even if Facebook never did.