“Scarcity” may be too simplistic because it reduces events to one scale. A “distance” metric could be more precise for the kinds of problems we’d like to solve with nostr. And we’re used to multi-dimensional distance.
Following, muting, banning is all binary on a distance scale. In the real world instead we attach social capital to individuals and screaming can bridge this gap, but not from Europe to America and not for long because you’ll get a sore throat.
It would be nice, if clients would experiment with more continuous distance metrics. Zapping being one of them.