summary:
With relay.nostr.band relay you read in all relays.
With relay.nostr.mutinywallet.com you write to all relays.
nostr.wine gives you permission to use filter.nostr.wine and we use it to have a spam-free global feed as it queries the notes of your contacts and the notes of your contacts' contacts.
Even though relay.nostr.band has anti-spam, a lot of spam gets through, so I prefer to exclude it from the global feed and use filter.nostr.wine.
We also use filter.nostr.wine as both a read and write backup in case the first two fail, although its scope is more limited as it only reads and writes from about 10 relays.
In short, you have write and read access to practically all nostr realys that are in the nostr.watch list with only 4 relays, so you save on battery and data and gain in visibility.
