I appreciate the Seasoned Advice stance and think we should use the same basic policy here for questions about "how to make..." something: reject the opinion-based "what's the best recipe for..." type of question but encourage questions relating more to technique or ingredient-list. As with SA there's a little bit of interpretation or leeway in that policy, and I think we'll have to do the same here.
The inspirational example linked in comment above could be interpreted as "recreating" or "substitution" -- the question I think could be steered toward "what ingredients could I use to make it taste like that" and be a helpful and productive question. In fact, I might comment on that question to steer it that way. More generally I would (personally) support or encourage edits or comments to steer questions along the lines of the Seasoned Advice policy.
Fortunately I think the space of "recipe requests" will be less problematic in Coffee by nature than in Seasoned Advice. That said, we should be vigilant about opinion-oriented pitfalls of brands or ingredients based on personal taste or preference.