Unintentional plagiarism is just as damaging to the reputation of the forum as the spambots plagiaristic activities. So, even a simple mistake is no excuse, and its a mistake that is very easily avoided.
Some are are very intentional they are doing text spinning, paraphrasing , merging more than one sources and using homographs.
All of the above activities again fall in plagiarism and will get the user banned.
Newbies All take heed; plagiarism is not taken lightly here.
Change it to All.