RSS feeds are awesome. They are the wave of the future, from the past. They have been around since the late 1990s, but are only just now being embraced for their convenience and versatility. When they were first introduced, the problem was that there was not much available in RSS format. Because it took so long to make enough content RSS compatible, RSS feeds sort of flew under the radar for the longest time.
Only now are RSS feeds starting to reemerge. They are coming out again because a brand new generation of internet users has established itself in the web, and they have just discovered RSS for themselves. It is a brand new product to them, therefore it is not old news. That growing excitement from a new audience base has led to even more sites actively producing RSS content. To the point where, if you were to create a simple, personal blog using a site like Blogger or Weebly, they automatically make your posts RSS enabled. You do not even get the option.
If you yourself are new