Public keys stored on different server

[Francesco Ariis]

Hello Martin,

Il 01 febbraio 2023 alle 10:32 Martin ha scritto:
> More and more I see messages which are signed - but the author didn't
> store his public key on a keyserver (eg. hkps://keys.openpgp.org) -
> sometimes a footnote in the massages gives a link where the key could
> be downloaded. Sometimes this link has a bad or strange https 
> certificate...
> 
> What are the reasons for such a procedure and what is the advantage?

Keyserver records are public and spammers can scan those (although:
a) in 2022 I wonder if there is still much value in email spamming and
b) some servers are taking countermeasures).

This could be a reason why some people prefer not to upload their public
key to keyservers.