Im terms of a perfect filter, not exactly, hence the best method for those crowds would be having a curated list, rather than applying said defition to all users…the users would know more about games tham someone hired at valve who would check a game for basic functionalities and doesnt evem finish the game (there have been times where a game would get verified, but has something broken late into the game). A curator would be able to adjust lists and add remove them as new updates happen that might add/remove functionality, something valve isnt going to revisit after getting a verified status.