True, barring the use of rogue clients or low-quality relays.
"I can trust Nostr because there's no decision that someone running Nostr can make that can take Nostr away from me." — nostr:nprofile1qqs8d3c64cayj8canmky0jap0c3fekjpzwsthdhx4cthd4my8c5u47spzfmhxue69uhhqatjwpkx2urpvuhx2ucpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3vamnwvaz7tmjv4kxz7fwdehhxtnnda3kjctvll3q2p
Discussion
My reference point is Google Wave. New platform being spun out from a big co, lots of innovative features, credible team, shutdown. All time and capital invested in building on the platform wasted, and it didn't matter what users wanted at all.
So long as users use Nostr, it lives. That is a pretty strong guarantee