Here’s an incredible fact: together, you published more than 660 million posts on WordPress.com in 2015, and made more than 655 million comments.

2015 was an important year for WordPress.com. Automattic acquired Woo and hit its 10 year anniversary. Calypso was open sourced and Mac, Windows, and Linux applications were also launched.

Also, we hit over 400 employees by the end of 2015. From memory, we were at about 265 when I was hired on July 14th, 2014. ?

Source: The 2015 WordPress.com Year In Review! — WordPress.com News