Sure, I didn't spend a lot of time with it, why should I? I saw that it was missing a great deal of basic things out of the box. I decided quickly to not waste my time learning more esoteric stuff that is only useful if I stick with Joyent and SmartOS.
You are an absolute genius for creating dtrace and it is nice to have but certainly isn't a necessity for most applications. Your example is voxer which is a total edge case since they've been pushing the node envelope since day one.
In the end, the reality is that SmartOS doesn't feel modern at all, it feels like Windows98. Actually, it feels like SunOS back when I had pizza boxes under my desk 15 years ago. I could spend time giving you tons of (free) feedback about what's wrong with SmartOS or I could just use Ubuntu and move on.
9900+ concurrent connections on a $22/mo Ubuntu box is 'good enough' for me.