Sometimes people create a constructive post with a detailed message but they don't add their data source link or a website where they could check the authenticity of their post. Also, some people copy content from the English forum and post it into their local forum without giving credit to the main post and author or put the main data source. I am not sure it's allowed or not.
It is not allowed. Even you don't know forum rule, you should self-recognize something is wrong with such posting style and motivation behind it.
33. Posting plagiarized content is not allowed.[e]
