Hacker News Reader

Ignorance is bliss ?

Non of the top Internet dogs - Facebook, Twitter, Uber run MariaDB

There's at least one that does.

Some do. But MySQL is far much more popular on large scale environments.

In Google BTW I'm not sure how much MySQL/MariaDB is left at all. They have been moving most of the stuff to Spanner.

Fear of breaking stuff. We still have some MySQL 5.1

Performance most likely.