Violation in plagiarism is usually not marked with a negative tag. You just need to provide proof of plagiarism, for which they are actually punished with a complete ban.
One thing to remember when you create a post about plagiarism, you must also submit a report to a moderator. This almost always works flawlessly.
As the moderator himself recently said:
I've even merited that post, hence I clearly didn't miss it

Before I didn't know I have to report too, but after that post I've also reported it. Still, nothing has happened. And yes, I know that the punishment is ban.
I don't even know what else I can do. I don't have anything personal against that account, hence after 3 posts in the Plagiarism topic and with one report too, I guess I will just ignore that account, since I've done my part.
That's also why I "feel the pain" of Pandu Geddon with his work/findings getting basically ignored.