By asking the question using the word "dead"[0] which has such offensive connotations, it will spur some to say "it's not dead" -- which isn't really going to be productive for what I think you're really asking. First, in one sense (but doesn't really answer your question) ... the old protocols like RSS (feeds), NNTP (news), IRC (chat), etc are never going to be "dead" because somebody somewhere will always be provid…
RSS does play a growing role in a few places: podcasts [1] and virtual assistant apps (e.g. Alexa [2], Google Home[3], etc.) Although in both cases consumers do not tend to have direct access to it. 1. https://itunespartner.apple.com/podcasts/articles/creating-y... 2. https://developer.amazon.com/en-US/docs/alexa/flashbriefing/... 3. https://developers.google.com/news/assistant/newsbriefings/t...
Now, for the past 6 years, I use RSS as my primary method of downloading podcast episodes and webcomic issues. I'm currently subscribed to about 60.
Dead? No. Declining? I can't say that for myself let alone writ large.