The reason why the privacy policy is simple is that Granary.pro has very little personal information (Gmail address, username, links and notes, etc.) and does not use it commercially.
Can you tell me which browser and version did you use? And also let us know the default language on the browser. I will try to find out the reason why.
Chrome, Firefox and Safari newest versions on macOS 10.12 with Polish language as default.
I am sorry about reply so late. I will contact you again after looking at that issue.