There might be better ways but maybe you could have a coffee based front end that has posts by anyone from farmers, dealers, reviewers, cafe owenrs, cafe customers etc. Then you can have a curator whale that curates the ones with the best business practices (fair pay, good for the environment etc.)
You could also encourage the coffee shops and dealers to advertise (have they buy the token and pay to a @null account. This was the plan I proposed to NM a while ago.
That'd be great to have one since I see the potential of coffee niche. Some people I talk to IRL even some relatives either wants a) becoming/ already a barista, b) having a coffee shop c) suddenly a coffee snob. It would be cool to have a front-end for sure with its working token, good curation, and moderation system. And yes, advertising within the system and pay to @null account may work. I don't know but has NM does it? It would be nice that there are natural shops or stuff that are exist there and advertise their stuff, don't you think?
They never implemented it. They liked the idea but didn't really have any web designers or programmers.