The question this boils down to ultimately is: Who owns the consumption platform (device/OS/Browser)? If the user owns the platform, it's the responsibility o

The question this boils down to ultimately is: Who owns the consumption platform (device/OS/Browser)? If the user owns the platform, it's the responsibility of the service provider to deliver HTML. Nothing more. The user may display the content in any way he/she like. Store it for later consumption. Extract information, etc. This is how the web was initially envisaged. Browser extensions which allow you to inject JS/CSS are still a relict of this era. If the service provider owns the platform, all the user may do is consume the content in its provided form (inc. Ads) or leave it. This is where the web is currently headed. With company controlled mobile platforms (iOS) the control over the platform is already completely out of the hand of the user. Consolidation of the Browser technology is another step in this direction. If the regulator does not step in, this paradigm shift will go on, and we will see more and more lock-down of the web.