Extending the DNS and simplifying bitcoin, what's not to like.  Mark has other thoughts at:

[StuntPope](https://bombthrower.com/articles/)

Examples of Underscore Scoping from the article:

```
$ORIGIN bombthrower.com.
_lud16.markjr IN TXT "https://my.ln-node/.well-known/lnurlp/markjr"
_btc.markjr IN TXT "bc1qu059yx6ygg9e6tgedktlsndm56jrckyf3waszl"
_ens.markjr IN TXT "0xEbE7CcC5A0D656AD3A153AFA3d543160B2E9EdFb"
```