You can leave public feedback for the schema.org
Please note that comments and your name/organization will be shared with the public schema.org
community group. Email addresses will be accessible to the project's steering group and site admins.
To learn how to engage more deeply with the schema.org
community see http://schema.org/docs/about.html
for more on how we use Github and W3C community groups to improve our schemas, and for other ways to get in touch.
Note also that this is not the place for feedback on particular search engine products, tools or services - please get in touch with the relevant company directly.