Most people today have youtube channels and are pumping out content on a daily basis so they can be placed higher in the search engine. What most of them dont know is that youtube selects based on views and the best way to earn fast views on youtube is by Clickbaiting, Doing giveaways and Spamming in bigger youtubers comments section.
Clickbaiting eg you are uploading a video that is targetting a young audience. Lets say your video is titled Speculating on the next GTA video game. In your tags section you would input words like next GTA game leaked, GTA game reveal, GTA news.