system
A chat on subreddit /r/NoStupidQuestions
human
It drives up the viewing for these events, which means the organizarsers make more money
gpt
Ya. There was an article about viewership and the sports and how viewership changed a few sports. 
Take for example formula e. It had a fan boost option (now removed) where the audience can decide who gets extra power. This is totally done for increasing the audience participation and viewership on TV.