Once a Thriveboard is created, all of your Domains will automatically be weighted at 5% to ensure visibility. If a Domain is weighted 0% and has no goals, it will be visible while editing but will not clutter your Thriveboard after editing. Ideally, all Goals within a Domain should equal 100% and all Domains on a Thriveboard should equal 100%. You will see the warning icon if your weights do not equal 100%. 

Click on the icon to see where your weights might be off.