I would argue that the employees may be negligent in the need to verify with the database due to being overworked minimum wage part timers who are just looking to “get the job done” and not care about mistakes made.

The presence of a database also does not mean they are explicitly taught to say “you need to use this database to verify, here is how to query it and ensure it looks right”

GameStop could probably address this partially with hyper-focused UI walking them through a review but then employees are just going to hit “next next next” just to get it done

I think this idea is cursed and a bad idea for GameStop to implement because this is inevitable and we are going to see this over and over again. This was already a recurring joke at some locations selling older games, esp. Pokemon, prior to GameStop formalizing the “Retro” branding