I see this a few times with "New Contributor" puzzles. Many of them have not really looked at the site rules or Help Center sections and end up making mistakes (been there, done that). One of the most common mistake is posting old duplicate puzzles without attribution. Recently a couple of old well known puzzles were posted on Puzzling SE which were appropriately marked as a Duplicate and closed by the SE veterans.
Now I looked at the profile of this new contributor. It turns out he is a very young teenager. My speculation is that he is very enthusiastic and likes puzzles. It would be shame to have him discouraged and not continue.
I'm not sure what the answer is. Any suggestions?