Report to mods. Giving him a red tag doesn't really do anything and is not what the trust system is supposed to be used for.
This. It's plagiarism, and he's a stunningly silly idiot for doing it at all, and doubly so because he did it in the same thread only a few posts after yours.
That member registered in 2018 and doesn't look like he has too many posts, so it's likely somebody's alt account. That doesn't explain why he did what he did, but if he gets banned maybe someone can sniff out any alts he might have.
Already done reporting this copycat! Guys like him deserves a permaban because he already committed a couple of offenses as @YOSHIE stated.
That guy definitely deserves a permaban, especially if shit like this is an apparent pattern for him. Good riddance, I say.