There is no way to measure this without spitting out bias all over the measurement.
nostr:npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6 do you know if anyone has measured this?
Discussion
Its not possible to A/B test nostr app X before and after outbox implementation, as most nostr apps are FOSS??