WPEngine claims that its use of the WordPress trademark is fair use because WordPress technology is open source and free, and that in 2010, Automattic transferred the WordPress source code and ...

Open-source advocates should only care about the integrity of FOSS licenses, and Automattic can adopt a different license for their code whenever they wish.

Mullenweg founded WordPress in 2003 at 19. Today, he is the CEO of Automattic, which owns WordPress.com and contributes time and code to the open-source WordPress project.