I'm not saying that it is really so. But, What if those articles were written by team members of the project before?
plagiarizing technical information and plagiarizing more than just few lines should consider as scam. Project owners has right to put their solid reason. Sometime two project owners tied up and allowed each other to share piece of information on their pages.
Sometime owners are adding reference links from where they written or taken idea.
There are few project whose whitepapers first page was plagiarized from different sources and those sources are like SEC's website. I found one of whitepapers 1st page was plagiarized more than 50% of contents from different sites like SEC. I don't see them as scam because they are adding piece of information from some trusted sources.
But at the end everyone has their own point of view.
according to @qwertyup23 this is not scam accusation.
And regarding ETHEREUMCARD whitepaper they are copying such articles or paragraphs which can get written by themselves.
And the way they tried to put copied text shows they are not good at all.