Sorry, didn't see this question.

Essentially, PGP allows us to establish decentralized identities... many in the Monero / security / privacy space have verified my key in person, at conferences, etc. Using the message above, they can establish that this is not an impostor account (unless I was sloppy and lost access to my PGP private key). For those who don't know me personally, they can still establish that the same key that signed that message above also made the following code changes to Monero stretching back to 2017. The key has also been verified and digitally signed by some members of the Monero Core team who you may trust to some degree. You still decide, but you have a bit more info now.

Hope that helps.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

I Jonathan Cross control @jonf3n on monero.town
You can verify this message with my PGP key:
9386 A2FB 2DA9 D0D3 1FAF  0818 C0C0 7613 2FFA 7695

Available on my website:
https://jonathancross.com/

That key has been verified by monero core devs and others.
-----BEGIN PGP SIGNATURE-----

iQEzBAEBCgAdFiEEMsk361Pa9SImG35c2FeN+Op8zxsFAmSIutAACgkQ2FeN+Op8
zxuvKAf8DejF44H3s7OkxQWOa89lkUt5Jo6T2/WVtaGfHaPvzcyiCngMVf0XdoFA
KKTCZdZ3oa6Q9skgFJYnTHVNYIZ0bOkxVjblmWkf33NOKzswgoP1UP+ZPoafY6MB
YTw5SyWbeLPYivWNt+IUWqY+BUH/FjNYFTBGWary+qo12XiS0LRORgQsh1u7bkeg
2gADj9e30eLolW9HyxmyIWMZg0Bg5BjOymc+nsxgIHA1k89qUUVjB+x0yVRnUl0Z
4i9MlsuTDotlFqCpL85jQUvLVLtEfxzoqRkRGmQy93m0j+P0hlMQ/v6PhGigQg3L
BA1p7HNvNf8wLtEnERF042QQzi1tqg==
=3JQL
-----END PGP SIGNATURE-----