Why 202[3-9] though?
~-The Best Sausage ASMR Of 2024
This rule would avoid these articles, and GP probably sees the few false positives as an acceptable tradeoff.
The spammy articles won't make the HN front page (at least not with the original title), but there will be a lot of false positives from the HN style of tagging older articles with the publication year.
Jokes aside, my best guess is that parent is trying to hide prediction posts like "What will cryptocurrency look like in 2026?" or something.