Exactly. I've never stopped using RSS. And if I look at follower counts on Feedly (which is just one RSS aggregator our of multiple options) I see tens of thous

Exactly. I've never stopped using RSS. And if I look at follower counts on Feedly (which is just one RSS aggregator our of multiple options) I see tens of thousands of followers to many popular feeds. So there are many people who use RSS - probably millions. It didn't go away, some people chasing new shiny things like twitter did - they are always welcome to come back, it still works quite fine.