Giving all my money to charity isn't a part of my ethics.
Increasing net utility (or something of the kind) is one of the things I care about. So the fact that something increases net utility is a reason to do it, and the fact that something decreases net utility is a reason not to. But net utility isn't the only thing I care about, so a thing that increases net utility isn't necessarily a thing I think I should do.
What I insist on, though, is another matter again. That's a matter of Schelling points and traditions and the like, optimized (inter alia) for being easy to remember and intuitively plausible.
So:
The attentive reader will notice that not killing people just for being annoying clearly fits into the same category as the last of those.
Link to Blog Post: "Extremism in Thought Experiments is No Vice"
_____
_____
This is a LW discussion post for Yvain's blog posts at Slate Star Codex, as per tog's suggestion:
Scott/Yvain's permission to repost on LW was granted (from facebook):