[Tagging] How to revive a tag proposal?

[António Madeira]

Greetings.

In Portugal there are olive oil mills all over the place, as I'm sure
there are in Spain, Italy and Greece. Unfortunately, there's no easy way
to map them on OSM.
I found an ancient proposal for this tag, but it never went forward:
https://wiki.openstreetmap.org/wiki/Proposed_features/olive_oil_mill

I contacted its author one month ago via OSM profile, but received no
answer.
What can I do to revive this proposal and implement this tag?

Regards,
António Madeira.