As far as getting a warning, I'm not sure why you were expecting one or why you wouldn't have read the rules before committing the offense.
By looking at the post lovesmayfamilis wrote, he knew that plagiarizing isn't allowed and shouldn't be done. But weeks after creating a thread in which he talks about how bad it is, he copy-pastes from a few sources in one of his posts. I don't see how the admins will overlook that. But like I said previously, everyone has a right to appeal and he can try it as well. It takes almost a month when I am reach the member rank then he reported. I don't know what kind of mindset he got.
I'll leave this beautiful forum thanks Pmalek