I think where most people chokes on Wasabi is the perception of compiling from an "insane" language to a sane language. No matter how cool it is to work at Fog Creek, it's very 1965 to work in a proprietary language, especially for web development. If Joel wasn't famous, anyone leaving Fog Creek would have serious problems finding a new job.<p>Facebook compiles from a "sane" language (PHP) to a less sane, but twice as fast language (C++). The alternative was to get their devs to work in C++, which they decided was an unattractive solution -- this seems reasonable.