Any dictionary site will inform you that plagiarism is passing off someone else's ideas as your own without credit, which is generally not acceptable anywhere in the Western world, except on this website, evidently.
In reply to yet another
tu quoque attempt, Alyosha specifically wrote that he didn't want authorship credit. Speaking of Alyosha—whom I have great respect for—he is an example of someone who always gives other people proper credit when he uses their ideas, which should be standard behavior. After he credited me as coauthor in his Super Pitfall improvement, we worked together and made an even better movie.
This is about the intellectual property rights of everyone on the site, not just me. I have in fact defended someone else's work on the exact same principle:
Post #495619
If the policy of the site really is that uncredited theft of ideas is acceptable and only input matters, then there is nothing stopping people from directly copying input, making it look "different enough" by changing the timing of inconsequential movements/jumps (it is now their own "original input"), finding 1 frame of improvement at the end, and claiming it as their own work. There is also a disincentive to provide any substance in submission text, because are just giving someone else a how-to guide to stealing your work without credit. (Of course, ideally people would both improve your work and properly credit you for your contribution to encourage collaboration and an optimal movie, but again the whole point here is that this site's stance on plagiarism creates a bad faith environment with the apparent justification that crediting too many people, even when they deserve it, is somehow bad.)