Agree in principle but I think with the web being so varied it's hard to have a one size fits all. Certainly it shouldn't be abused for general websites, but f

Agree in principle but I think with the web being so varied it's hard to have a one size fits all. Certainly it shouldn't be abused for general websites, but for sites that represent something that's more 'app like' say a game, it's a fair way of indicating to the browser we'd like the UI removed more than not.