Talk:Codex/@comment-75.158.101.120-20190311020744/@comment-2600:1006:B064:43F2:6D4D:1A60:A614:399A-20190324084655

Because not all players sit in the wiki looking everything up, also scanning things helps with quests in a number of ways. Try progressing through the game with no scanner. Try using the simulacrum after never scanning anything, Just a few examples there, but there are a lot of other reasons, the wiki is not Warframe.