Errors

[daemoth]

I was wondering, is it normal that the same sheet can be in different categories ( for the custom) or different games ( for rips)?
For example: This custom/edited sheet, "Mario, Luigi, Wario & Waluigi", is in 4 categories, one for each characters. 
Or the sheet "Mario Bros" is in two games, All Night Nippon Super Mario Bros. and Super Mario Bros. 2 (Japan)

Same size, same icons, same uploader, same everything. I found those just by searching Mario. We could save a lot of space by deleting those duplicates.