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.
I personally faced a problem that one gets banned only for publishing own articles. Mod bens for plagiarism, but don't understand why they banned them from publishing their own article. He was a crypto blogger, used to publish the same article on different platforms. If other social platform does not interrupt then getting banned is hard to see. I think moderators should update the system to justify the members.
One user works day by day to contributes to the country and builds a reputable profile but one flag can destroy the dignity.
Note It's all my own opinion.