I didn't submit the link but I did write the blog post. AMA!
I have to admit I totally latched onto the point you made about fast development time. The interpreter+compiler approach is something I've been pining for for a little while now. I've only just begun to punch holes in my obsessive tendency to only use interpreted languages (because I hate compile waits that much), and to me having the fast-iteration times of interpreters, and _also_ -O3 when it's needed, would be the…
Sort of. We already have an interpreter (CTFE!), it's just not up to the task for what I want to do with it.