A lot of people don’t know this, but you can subscribe to subreddits using RSS by simply adding .rss at the end of the URL, e.g: https://reddit.com/r/socialism.rss and then you can add the feed to your favorite RSS reader. For example, there’s a great add on for Firefox and an Android app.
As far as I know, RSS feeds aren’t affected by the API changes. So if you use Reddit to catch up on the news, this is a great way to do that.
RSS is really underappreciated, and most news sites still support it. It kind of fell out of vogue because it makes it hard for corps to track and monetize the users.
.rss outputs it in a format that RSS readers recognize, .xml and .json are just different ways the page can be consumed, for example if you wanted to get the content through a service
