There are some HN users whose comments I like but I can't see a nice way to "follow" them. The best I can do is keep a list of them myself in some bookmarks and visit their comments page every now and then.
What do you do? Are there any particular people you follow? I'd like to add them to my list if I find a good intersection between what they post and what I like.
That said, I don't follow people in the sense of tracking their every comment, either here or anywhere else.
But you can see people's comments with https news.ycombinator.com/user?id=userid