You don't understand the difference between many open source licenses or the concept of crediting open source code authors... it does not mean that the code is free for everyone to just use as they please...

https://www.gnu.org/licenses/license-list.en.html for a quick intro

Also, are you okay with other people selling *your* work and *you* getting nothing out of it? Many people are not.

Copilot is doing this on an industrial scale. It’s the difference between copying sample code and outsourcing your work to a third party colkectively