Earlier quoted context omitted.
It is a cat and mouse game. And security by obscurity practice. Not saying it won't work, but if it is open sourced, how long before the malware will catch on? Here is one on github: https://github.com/NavyTitanium/Fake-Sandbox-Artifacts
Author of scarecrow here. Our thinking is that if malware starts to adapt and check if scarecrow is installed, we are doing something right. We can then look to update the app to make it more difficult to spot - but its then a cat and mouse game.
Simply, if users are as intelligent as you think, they’re too intelligent to use your product.