Why use it at all? In small modules it increasses the compile time or not change at all, in large modules it completely screws up the compile time, from 1 sec to minutes sometimes, why would someone ever want to compile all the files in the module that had a single change to a comment in a small file
This is a real question, i am sure there is a reason, i just really want to know what is it, why should i enable bUseUnity