I’m not sure which way is the best to measure this but here’s some all-time numbers:
1. 44448 distinct pubkeys that has broadcast at least one kind 0 event, i.e set metadata at least one time.
2. 84053 distinct pubkeys based on all events in the database.
3. 48378 distinct pubkeys that has posted at least one note event(kind 1).
For reference, the previous numbers I’ve posted was based on the second point above, i.e distinct pubkeys based on all events in the database.