Seriously though, I dream of a world in which all apps had a "subscribe on your news reader" button which could open an RSS client, maybe something implemented by mobile OS providers so it's easy for new users but overridable by users like the browser or calling apps would be ideal.

I think RSS is a vastly underused technology/tool. I wonder at what point people lost hope in it and abandoned. Not to say, it's completely abandoned, but it's not used as much as it should be used.

I personally feel like and I remember very distinctly that RSS (and Atom Feeds to boot) seemingly hit their peak with google reader and when google reader was discontinued RSS seemed to wane quickly thereafter. I’d be very interested in knowing if hard statistics back this up or not but my anecdotal experience suggests that this is indeed the case

I think Twitter's coming of age was the big blow. When Reader shut down it was already waning.