Exclusive instead of Inclusive by default Game Activity option

This would be a fairly simple option for the team to add to an account. Whereby having it set to "Exclusive" means it will only show games you have manually added to the "Added Games" list in your Status Message.

This is a pretty useful Privacy feature, so that we have explicit control over what shows there, instead of it being a guessing game about whether something you launch is going to be picked up and displayed without you being aware.