Okay, then let me just ask silly-ly: What if you have no friends?
None of my friends use nostr (and likely never will - some tried, but they all basically left) so I just went to global and started following people. It was tedious...
Personally, something that has been _bothering_ me is: Profiles, kind 0, can have tags applied. What if, during onboarding, we ask someone about their interests and they get suggestions based on the selected interests (= hashtags) that are found in people's profiles?
Virtually no client uses this feature and it baffles me. o.o
ref https://github.com/nostr-protocol/nips/blob/master/01.md#kinds
ref https://github.com/nostr-protocol/nips?tab=readme-ov-file#standardized-tags (t-tag)