I think relay.damus.io has quite a few bot accounts too - maybe that's why numbers look huge.

Maybe a third of that seems more realistic

This is what one of the Japanese devs who tracks English users published (they consider only 5-6 relays)

nostr:nevent1qqsw8ju54xez7285x5f9t3hvu9gszwcupugkvhs8x5ny48scfmlkancppamhxue69uhkummnw3ezumt0d5pzpvly86xv0ekl7gar8kfp8glfztvftvwrusjsys8qexwmal3sdz6lqvzqqqqqqy6ctply