For instance Chrome and Internet Explorer are both proprietary applications. And before you get on me about Chrome not being proprietary I wouldn't consider any program which includes non-free bits free software.
Who cares? Even Firefox is developed by a tight group of developers who can pour anything in the absolutely massive codebase. I don't think there is any practical difference between free and non-free. That something is proprietary does not automatically mean that the makers want to screw you. I don't know why that attitude is so widespread in Slashdot. Both parties, free and non-free, strive to create a product that works for the users.
It will help prevent your game from having a generic feel.
It's interesting that you point that out. I have also noticed that I can put my finger on some games and know that they have been made with Unity. For example, The Long Dark or Shelter. Great games but there's the certain "Unity feel" in them. I'm not completely sure what makes it.
One tip for those who are using regular VS though. Not many know that there is actually an integrated hex editor.
In the "Open File" dialog, select a file and then choose "Open With..." from the pull-down menu in the bottom. A new dialog pops up from which you can select "Binary Editor".
Life is a healthy respect for mother nature laced with greed.