If Facebook comes up with their own token or coin it will be a strong competitor for the Steemit platform. With that number of active users it could really push the whole crypto thing beyond everybody's imagination.

Humans like to stick to things they are used to, and Facebook already became many people's everyday tool, every extension or development might be embraced wholeheartedly as long as users see some use. That's were Zuckerberg has to start, creating some incentive .