Your "broadcasting relays" idea scales like shit.
Have you tested it or are you just wishful thinking as usual?
30 years of observing attempts at distributed systems fail over and over again.
Means I have some idea as to what works and what doesn't. What you propose there is called epidemic forwarding and the usual first attempt by all those that can't be bothered to make even the slightest attempt at learning from past failures.
I know on nostr you can't ban people but can we make an exception please and ban this horrible "BitTorrent mainline" nostr:nprofile1qqsfxrxw7y3h9hf0zczhelz57rdajse4mz63kn38xu3kkqx2kuv0ekgpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3vamnwvaz7tmzd96xxmmfdejhytnnda3kjctvqyvhwumn8ghj7erpwd5zumt0vd4kjmn809hh2tnrdaksrej4w0 person from liking my notes please. 😮