this is a tradition in the Emacs community: for each release, they publish "antinews", e.g.:
> For those users who live backwards in time,
> here is information about downgrading to
> Emacs version 21.4. We hope you will enjoy
> the greater simplicity that results from the
> absence of many Emacs 22.1 features.
> [...]
Imagine the new technology was invented first, and the old technology is actually the new challenger. What are the advantages and benefits of the old technology you can promote over the new one?