Good. Let's suppose that theoretically yes, there was plagiarism (although I still did not do this). But he was 2 years old.
2 years ago.
The rules were edited last time on December 27, 2018.
Maybe at the time when plagiarism was published this was not in the rules?
In October 2017, there were already topics in the same kind as yours:
https://bitcointalk.org/index.php?topic=2296660.0.
And the answers were the same as today.