Rabble on Nostr: Why are Amethyst and Damus using event kind 30000 with a “d” tag of “mute” ...

Why are Amethyst and Damus using event kind 30000 with a “d” tag of “mute” for their mute lists instead of event kind 10000 which nip-51 specifies as the event kind for mute? Coracle and nos.social are using kind 10000 as the spec says.

https://github.com/nostr-protocol/nips/blob/master/51.md

Vitor Pamplona (npub1gcx…nj5z) & nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5sWhat’s the thinking here?