I personally don’t see any fault in copy pasting stack overflow answers as long as you understand…

Me either. The saving principle is to always, always credit your sources, even if it’s a vague “I read this article on …, can’t remember the name, it’s about …”.

It’s actually very rare to come up with an idea on our own — like once or twice in a lifetime, if we’re lucky.

A person who doesn’t talk about their inspiration carries less weight (though admittedly only for those who care, else fraud like this wouldn’t exist).