Because I want to promote the idea of relays as communities, where the relay operator acts like a community curator. The tone and content style of each relay reflects the taste of its operator. These relays are like different magazines. Of course, we’re still a long way from fully realizing this idea.
Here are the reasons I chose the current default relays:
wss://nostr.wine/ — a paid relay
wss://pyramid.fiatjaf.com/ — an invite-only relay
wss://relays.land/spatianostra/ — a relay where content inclusion is decided by votes from a specific group of people
wss://theforest.nostr1.com/ — a personally curated relay (not totally sure about the exact strategy)
wss://algo.utxo.one/ — an algorithmic relay
wss://140.f7z.io/ — a short-text relay (max 140 characters)
wss://news.utxo.one/ — a news bot relay
wss://yabu.me/ — a relay focused on Japanese content