You don’t need non-btc content to get non-btc people on a social network. Social networks have 1% of creators, 10% of commentators and 89% of consumers. 

Incentivize creators to join nostr and get non-btc content and non-btc people. Unfortunately, nostr has nothing to offer to creators and general point of the core of nostr community is “we don’t need it, nostr already won because its a protocol”