Approaching permanence through redundancy and presumably it helps with reaching users who might not otherwise see your note. The latter is less relevant with the advent of the outbox model, but still ...
I would understand a transmission in the first 30 relays, but 100 seems too many to me, also because they would be the free ones, even the ones with authentication I don't think are interested.. I don't think other pay relays accept this model
1❤️2