[prodigal_erik]

Pretty sure they would agree. The Quora and Asana founders seized on the opportunity to leave it behind, and what I've heard from Facebook staff is that they've managed to live with PHP. I can't remember anyone saying they like it.

http://www.quora.com/Quora-Infrastructure/Why-did-Quora-choo...

[cageface]

Our main takeaway from that experience is that programming language choice is very important and is extremely costly to change.

Taken directly from the horse's mouth, handwavy arguments about languages making no difference to the contrary.