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Wouldn't that mean you need a ref link on everything?
After talking with the wiki staff on IRC its clear to me that they don't care about the community after the way they talked about it. An official report has been sent to Sabina with this matter for review of MWorld's position as a Fan Site. I'm done working on the wiki, if this is how they treat the community and their editors then they should consider just making the website private. At this point this isn't a publicly available resource, made by the public for the public, its more of a biased staff ran webpage where they only want to see content that they think "looks ok".
About your topic, plagiarism is the main source of copyright lawsuits worldwide, crime or not its used as an excuse by just about everyone because its very easy to use. That being said, just because Nexon released it to the public domain, doesn't make it any right to practically copy/paste information and not state where it came from. Looking at a wiki you want to know what the page is talking about, why, how and most importantly you want to see references and sources.