But do you agree that if you do know pretty much that this code is meant for someone else and not you, does the fact that they did not safeguard their system better make it ok for you to use it?
I think the analogy is good - if a store left their door open by mistake, does it mean you can steal from them? And if they are "ok" with it, meaning they know there will be some people who steal with the system (for example, using items and then returning it claiming they are unused), does that make it ok?
In other words, when someone else does something wrong, does it make it ok for us to do something wrong?