The article 13 is a part of the new copyright directive of the European Union to protect copyright holders.
Companies are held liable for copyright infringements by their users.
However, the entry into force of article 13 could have catastrophic consequences.
In practice, this means that platforms must check every content uploaded by users before publishing it.
For companies such as YouTube, Facebook, Instagram, Twitter and co. it would be too risky to host content from private individuals.
YouTube's CEO Susan Wojcicki recently announced in an open letter the consequences of article 13 for YouTube.
If article 13 were to come into force, YouTube would have no other choice then to delete all channels of the European YouTube-Creators, unless the channel belongs to a major media company.
European Union citizens could also lose access to videos from Creators which are outside of the European Union.
This applies not only to YouTube, it applies to any website on which users can publish content.