But really, how is it that we've come so far as a society and just scream at things like these ? Isn't knowledge supposed to be shared ? Even if it's not properly attributed ? There are plenty of misattributions in Mathematics, theorems who people did not create or develop at all, yet their name has been recited for years and years in elementary and middle schools. Yet teachers will say that plagiarism is bad! But hey, don't worry if we call this theorem like this because this is ok and it's actually not plagiarism. We're literally just regurgitating ideas, as several commenters have said (good luck getting the primary sources for my comment lol).
Also, should my ideas be considered plagiarized even when I thought of them before someone else published them ? Interesting dilema, at least for me.