Failing of running a relay by each of the frequent users on Nostr, the use of a single official & dedicated relay can pass for a centralized relay & therefore liable to attacks…
NIP69 can’t fix everything in the long term, it must either be extended or remodeled.
Nostr need a 'server bunker' for big data hosting! Perhaps, in the future, Nostr could be more functional in the manner of PiratesBay... https://video.nostr.build/cfc18e1f35d507ba12cc4ab9c6ce3404635efe13321098224762b902ebafe47f.mp4 nostr:note13cn24e7t8re9pyp0tf4hj3n9dg7rmlpuywp8gm332kah0pcm8anqrzz7le