I brought up this idea up on Discord, but I thought I'd post it here as well.
Simply put, the site has an option to categorize games by genres instead of system. However, every single Custom/Edited section (and their sheets) is given the genre "Other" which causes actual games with that "Other" genre to be mixed in with custom/edited sheets if you were to search that category.
https://www.spriters-resource.com/genre/other/
It'd be pointless to have a "Custom/Edited" genre as searching through the Custom/Edited "system" gives the same exact results.
Simply put, the site has an option to categorize games by genres instead of system. However, every single Custom/Edited section (and their sheets) is given the genre "Other" which causes actual games with that "Other" genre to be mixed in with custom/edited sheets if you were to search that category.
https://www.spriters-resource.com/genre/other/
It'd be pointless to have a "Custom/Edited" genre as searching through the Custom/Edited "system" gives the same exact results.