Comment by klapinat0r

I hope it's a mechanism to make it possible for new employees to actually work on this app.

Perhabs someone with experience on large complex applications can share some insights?

Otherwise, I pity the FB employees who gets assigned to this project. "Here you go, fix that button, here's 18k files to digest".

Surely they must've decoupled it into oblivion in order to have a class that manages "just that", so

1. new employee can work in an "isolated" context (although he really isn't)

2. can locate where to write and debug in this complex codebase.