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.
And blah blah blah. OP, are you trying to get merits here? All I'm seeing is a bloated post that's going over everything most members of the forum know about, especially those who read threads in Meta. In addition to that, it'd be better if newbies just read the rules before making their first post.
Why didn't you post this in Beginners & Help? It would seem more appropriate in that section if you're trying to warn newcomers, but my guess is that your signature campaign doesn't pay for posts in B&H (though I could be wrong).
In any case, pretty much everyone knows what stealing someone else's words means, whether it's paraphrasing, using a text spinner, or doing a simple copy/paste. There's no need for a thread like this.