<i>Environment: What is your preferred interpreter? [] Node, [] Rhino, [] TraceMonkey, [] SpiderMonkey</i><p>Ugh, when I hit something like this I doubt the whole thing. No V8? No JavaScriptCore? And TraceMonkey is SpiderMonkey (for this purpose).
If you add missing questions or corrections here (or on the post's Disqus thread) I'll pick them up for the next time I run this survey (and give due credit).