Correct me if I'm wrong, but this blog post doesn't actually seem to answer the question. I'm curious if Facebook really is having difficulty recruiting developers due to this specific issue and if the 40-50% pay offering really has anything to do with that.
It's not true in this case, though. People who have the power to choose, are voting with their feet.
Still, many people have short term thinking or knowledge (better to get higher pay now than realize it will hold back by career trajectory), or they aren't too worried about success of their company or their productivity level.
