A Redditor's solid explanation of memes and anti-meme behavior
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"We made this and shared this, why are you getting paid for it?" Which is different than the tribal notions. Basically if someone is going to profit from my free work, from my community, why shouldn't they at least offer me a cut? It is not a case of legal requirement, it is a case of decency. Something is built on sharing, then someone else decides to make a profit - without sharing that - goes against the grain of the idea to begin with.