So how much should we concern ourselves with morality? How much is enough?

[Whateverist]

The society in which I live determines the minimum moral standard thru enforcement of law(s). Beyond that the morals an individual adheres to are their own, my assumption is that it would be based on set and setting. 

To me, your list of ascending(?) choices of morals almost feels like an application to judge others.

They are meant to represent moral stances which are increasingly prescriptive in terms of the demands they place on those who hold to them. I would have thought a theist would be more likely to hold one of the later positions, while those who hold to naturalism might be more likely to go with the first. But judging from the poll it doesn't seem to fall out that way. I would also have predicted that conservatives might be more inclined to choose one of the latter choices.

I'm not sure what about the wording makes you think it has more to do with judging others. I tend to think of it as directing ones own action.

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I personally find it more and more difficult to stay awake through a thread on morality

What is the incentive to try?

If you're not raising kids, I'm really losing a handle on the answer to your question.