Facebook has obviously invested huge resources into developing this language and its supporting architecture. It's being used extensively throughout their presu

Facebook has obviously invested huge resources into developing this language and its supporting architecture. It's being used extensively throughout their presumably massive code base. To suggest that they could simply drop it and walk away ignores these things. Also, presumably they developed it for a reason; it fulfills important needs of theirs and they're not going to simply let it whither on the vine.