There are many instances of people not even being able to see the code in question, see clean room engineering An example for wine/proton/reactos developers fr

There are many instances of people not even being able to see the code in question, see clean room engineering An example for wine/proton/reactos developers from a moderator on the forum about the leaked windows xp code: "You look at the code? You worked for MS? No dev for us! It's that easy." https://reactos.org/forum/viewtopic.php?t=20189 https://reactos.org/forum/viewtopic.php?t=20189 There are many instances of large lawsuits where just seeing the old code made you in eligible to even touch the new code