conditional config file entries (bound to e.g. sender and recipient keys)

[Robert J. Hansen]

On 06/18/2012 01:07 AM, Hauke Laging wrote:
> has there already been a discussion about it whether it would make
> sense to have conditional entries in the gpg config file (like e.g.
> SSH for different destinations)?

Not to my knowledge.

> Depending on the key to which is encrypted, the key by which is
> signed and maybe even the application which calls gpg different
> settings may be selected.

Show me a use case.  When would this be useful, and to whom?  How are
these people currently being impacted by the lack of such a feature?