Author here. We use it because it works well for us. We've put a lot of work into making MySQL scale for us to the point where it's a very well supported syste

Author here. We use it because it works well for us. We've put a lot of work into making MySQL scale for us to the point where it's a very well supported system and one of the main choices for a lot of storage decisions. We even use MySQL as a queue for Facebook Messenger. More details about this: https://www.youtube.com/watch?v=eADBCKKf8PA https://www.youtube.com/watch?v=eADBCKKf8PA https://code.facebook.com/posts/820258981365363/building-mobile-first-infrastructure-for-messenger https://code.facebook.com/posts/820258981365363/building-mob...