Etiquette suggests that it is not appropriate to name users, but it depends on a case-by-case basis. Generally speaking, I would avoid doing so unless you wanted to compliment the person, which you've done in this case. :)
Concerning narf-farbling it's not necessary to name the person but you might want to add a link directing users to how the word is used, which will make it counter-productive!
Who would benefit from the question? If there are only two results for narf-farbling how could users possibly contribute with their "answers"?
What would your question be? Would you ask about its origins? Then you need to ask its creator! Would you ask for people's opinions as to whether we should adopt this expression in our everyday lives, then the question will be closed as being primarily opinion-based aka, POB.
One way your question could be on topic would be to (1.) ask about the origins of "narf" and "farbling" (2.) ask for other similar compounds with either narf or farble.
However, I don't see how a post asking about a specific (and such a unique) neologism could generate quality answers. But you could try looking at questions tagged
neologism for ideas.