[Brajeshwar]

There is https://hnrss.github.io that does a pretty good job. A user's RSS feed is https://hnrss.org/user?id=sarcher

[wyclif]

That's good and I'm glad it exists, but shouldn't this be a native feature?

[dewey]

Using this for many years, it's also a nice way to see the comments of people you want to "follow".