YouTube network's 'react' trademark attempt sparks backlash

YouTubers hit back at Fine Bros' attempt to trademark word over fears that the pair are trying to seize entire concept of the reaction video format

An attempt to trademark the word "react" has ended badly for the YouTube network Fine Brothers Entertainment, with former fans unsubscribing from the group's main channel en masse in protest.

The network, which was launched by brothers Benny and Rafi Fine in 2007, is one of the most popular on YouTube, with 14 million subscribers. In 2010, they launched the series Kids React, which involved the pair showing children videos - initially other popular vial videos - and filming their reactions.