Fair use only applies in certain contexts, of which writing commercial software ...

anon2020dot00 · on Oct 18, 2022

People get snippets from Stack Overflow all the time and usually there is no concern whether it is properly attributed or not.

I'd argue that people who open-source code expect other people to learn from it in a small way of snippets and that constitutes fair-use.

foldr · on Oct 18, 2022

Code in Stack Overflow answers is explicitly licensed under a permissive license:

Copying code samples from a copyrighted work for use in a commercial product is not fair use.