Plagiarism destroys one’s reputation, the penalty is an immediate ban of the user. IMHO many newbies tend to plagiarise because they don't read the
rules and guidelines.
“No idea is completely new, only evolving” Many writers get ideas and inspiration from other writers, but you cannot copy a chunk of sentences from another writer word for word without being accused of plagiarism. Paraphrasing doesn't help either. Plagiarism can be accidental or intentional. Example of intentional plagiarism is when a post is written in one language is rewritten in another and posted in local board without citing the original poster. I don’t quite know where the forum stands on accidental plagiarism. When newbies ( I use newbies as a case study because I believe they are more likely to plagiarise although I do not have the stats to prove that) are interested in a particular topic they gather all sorts of information, this may eventually cause problems distinguishing between common knowledge, facts and information that needs citation.
In fact, in a sense, all our speeches and the knowledge we have learned are the summaries of our predecessors. This is the result of our childhood learning, including some technical language, when we are expressing our views. Is this plagiarism? The definition of plagiarism should be copied throughout. If you say a few celebrities, you will be judged plagiarism, which is a bit nitpicking. Plagiarism is prohibited and originality is encouraged. There is nothing wrong with it. I have no objection to banning accounts because of plagiarism, but I am a bit unacceptable because of the bones in the skin of the egg.