Having had time to mull over -- I think here's something about your post that bothers me. I don't think it's possible to pinpoint a single sentence, but here are two things that don't quite satisfy me.

1) Neither your austere or empathetic meta-ethicists seem to be telling me anything I wanted to hear. What I want is a "linguistic meta-ethicist", who will tell me what other competent speakers of English mean when they use "moral" and suchlike terms. I understand that different people mean different things, and I'm fine with an answer which comes in several parts, and with notes about which speakers are primarily using which of those possible definitions.

What I don't want is a brain scan from each person I talk to -- I want an explanation that's short and accessible enough to be useful in conversations. Conventional ethics and meta-ethics has given a bunch of useful definitions. Saying "well, it depends" seems unnecessarily cautious; saying "let's decode your brain" seems excessive for practical purposes.

2) Most of the conversations I'm in that involve terms like "moral" would be only slightly advanced by having explicit definitions -- and often the straightforward terms to use instead of "moral" are very nearly as contentious or nebulous. In your own examples, you have your participants talk about "well-being" and "non-moral goodness." I don't think that's a significant step forward. That's just hiding morality inside the notion of "a good life" -- which is a sensible thing to say, but people have been saying it since Plato, and it's an approach that has problems of its own.

By the way, I do understand that I may not have been your target audience, and that the whole series of posts has been carefully phrased and well organized, and I appreciate that.