My RSS reader (digg reader) is my most visited site/app, far ahead of the social sites and only closely followed by gmail. I would say that the people who do u

My RSS reader (digg reader) is my most visited site/app, far ahead of the social sites and only closely followed by gmail. I would say that the people who do use RSS use it a lot. There might not be many left, but I'd say they would fit the "power user" category. On the other hand, you might be able to skip building RSS features (idk exactly what kind of feature you were suggested) as long as you provide some kind of endpoint where people can plug ifttt and the like to get the same result (you can create the recipe yourself and advertise it)