Steam recently changed the default privacy settings for all users. This may impact tracking. Ensure your profile has the correct settings by following the guide on our forums.
I Have mine Profile set on Public & putting Steam tag as http://steamcommunity.com/id/rivera851/ it still doesn't work, keeps saying
Error: The Steam username entered is invalid, check privacy settings. If you have yet to setup a public Steam community page, refer to this thread for...