You should watch this:
https://youtu.be/d9ryPC8bxqE
Everything is a copy of a copy of a copy, treating ideas as property is a huge mistake as it stifles creativity. Ideas are meant to be shared and flow freely, they aren't "property" because all you've done is build on the work of someone else, and claim it as yours.
Sure is nice to preach for the ability to make derivative work, but the moment someone else tries to copy your work, you take it personally, and this is because we have turned ideas into property.
Ideas are not property, period. Treating them as such is incredible hypocrisy.
And this is coming from an artist. I'm more than happy to contribute to the free flow of ideas.
Case in point, guess who PMed one of the Devs in the PMDT with his Lyn moveset? Guess whose moveset was used as inspiration for the actual build of Lyn? Guess who didn't ask to be credited as a source and still doesn't give two ****s.
Ideas are ideas, simple as that. Nothing is original. Humans learn through copying. You are nothing but an information SPONGE, everything you know, all your thoughts, and beliefs have been adopted from the world around you.