RSS seems to me to have use cases far beyond website updates, if it was extended a little. Event syndication. Say that I'd collect the event feeds from a load of cinemas, music venues I like around the world, why not, plus those of musicians. I want my RSS-based events reader to narrow down the date field to be this weekend, location to be my town, and ticket field to be available, and why not price to something I ca…
See how much effort Netflix puts into making their catalog hard to browse, to obfuscate the actual size of the catalog and promote specific things they need to show a large return on, or all the sponsorships/ad-deals/promotions that inevitably begin to clutter almost any commercial news feed.
We have the technology, but publishers will fight tooth and nail to keep control over the platform away from the end user.