Please explain what is happening on the forum, or the rules do not work here for everyone?

In the posts of this man found plagiarism and he was banned


https://bitcointalk.org/index.php?topic=5143331.0

Original


https://bitcointalk.org/index.php?topic=3124081.msg35214741#msg35214741

plagiarism


https://bitcointalk.org/index.php?topic=3124081.msg35589723#msg35589723

in a very short time we see the result


https://bitcointalk.org/index.php?action=profile;u=1021758

I did not see the courts, appeals. How is this possible? Or is he exactly a hacker?