YouTube uses video tags to help the audience find videos, and we use the same tags to tell the publisher if you have covered their game . 

You can check whether we have discovered your game coverage by looking in the content stream on your profile page.

When you first sign up the system will go back 6 months and add that content to your profile.

If you use Ad-Blocker Plus, this may interfere with coverage listed in your Profile. 

To solve the problem, go to the browser extension settings and add www.keymailer.co to Whitelisted websites.