Suggestion: description / summary metadata for emails in mailing list archive

Hi,

Has somebody considered adding the twitter / opengraph summary stuff to
the mailing list archive?

E.g. for https://www.postgresql.org/message-id/97df3af9-8b5e-fb7f-a029-3eb7e80d7af9%402ndquadrant.com
adding something along the lines of

og:url                  https://www.postgresql.org/message-id/97df3af9-8b5e-fb7f-a029-3eb7e80d7af9%402ndquadrant.com
og:title                Subject: select_common_typmod
og:site_name            PostgreSQL mailing list archive
twitter:card            summary
og:description          First few words of email?
og:type                 article
og:article:author       Peter Eisentraut
og:article:published_time Tue, 20 Oct 2020 10:58:18 +0200
og:image                https://www.postgresql.org/favicon.ico :)

would make mailing list references be a bit more attractive to use in
slack, teams, twitter and whatnot.

Greetings,

Andres Freund