Some important context as this news breaks:
#WordPress is an open-source project, available at WordPress.org.
One of its co-founders, Matt Mullenweg, is CEO of #Automattic, which runs WordPress.com and owns #Tumblr.
They can’t sell what they don’t have, so “WordPress” here refers to WordPress.com, *not* self-hosted WordPress instances.
BUT many self-hosted instances use the Jetpack plugin, which does send data to WordPress.com, so that might be sold 🤬