laanwj on Nostr: i would guess: a combination of software maturity, which is way easier if you can ...

i would guess:
a combination of software maturity, which is way easier if you can "cheat" with centralized solutions (nostr isn't ready to add that many users), and marketing
most people don't have censorship resistance that high in their list of priorities for a social media, or it even sounds scary to them, they just want a fun community with "fair" moderation
bluesky also cashes in heavily on nostalgia, it feels like the old twitter