These two assholes created a channel involving reaction videos, such as "Kids React", "Teens React", "Old People React", etc. It went all fine until they decided to actually copyright those terms, their format, and even the word "React". This would bar anyone from using those titles or descriptions on their own uploaded videos unless they either paid the Fine brothers 50% for every use or 60% of any ad revenue they earned from their videos. Youtube and Reddit didn't like the idea of two guys attempting to lay claim to words or formats that were around long before their channel existed, so the Fine brothers lost over half of their subscribers and had to issue an apology.