they are:

- centralized

- only support shitcoins

- explicitly no bitcoin

- marketplace only for "partners"

- email required and kyc for high rate limits

we’re fixing this by using nostr, cashu and building everything open source

nostr:nevent1qqstvkenlssge6z79422xa6trz3jv3rnqsx7098d9dn6fn7l0j9mz7g523tnl