Every user can set this value on the My Sites admin screen. It defaults to the first blog a user created in the MultiSite instance, if it’s unset and the user creates a new blog, that blog becomes his primary blog.
Every user can set this value on the My Sites admin screen. It defaults to the first blog a user created in the MultiSite instance, if it’s unset and the user creates a new blog, that blog becomes his primary blog.