> All because... the person who did it first wants attribution? They want their name to be included in some credits.txt file that nobody will ever read? Yes, a

> All because... the person who did it first wants attribution? They want their name to be included in some credits.txt file that nobody will ever read? Yes, and yes. Those would be the terms that person publishes their code under. If you can't agree to those terms - maybe because including a single name in a credits.txt file that no-one reads is somehow too onerous for your process - then you are always free to re-implement that code on your own.