Nostr and other platforms like Fountain will destroy ad based revenue.
Ad deals may still be lucrative, but there will be no need for free services to be supported by ads when a small percentage of consumers leaving a 1.2ยข (21 sat) tip on a post could result in 7.6x the revenue that X provides via ads.
nostr:note1avv08d5dqsf5le5d3m5ge3ctqfua26cm8awq5xuum93garqmmpcscqe5kk