So apparently this subreddit only allows link posts, so here it is!

So let's say a random Youtuber is making a Gleam contest, and they get 100,000 entries. The Youtuber then opens a new tab, signs up entering a random name and a throwaway email. Finally, when it's time to reveal the winner they use the "manual select" option and choose themself as the winner. How do you detect non-random winner selection?