Comment by sylware

Yep, that's why in many cases it is better to refactor already tested and debugged code.

Additionnally, the size of the code base increases the difficulty to spot 'obviously' refactored code from open source projects. There is a code complexity thresold. Coding AIs could help?

The only protection would be the honnesty of microsoft coders... wait, did I say "honnesty" and "microsoft coders" in the same sentence?