They don't have to be like that all the time, it's just when you're doing a comment swap with someone. It's not just the number of comments they receive it's the actual content of the comment.
Exactly, it was two lines. That's not what I consider a comment for a comment swap. It says absolutely nothing about my story aside from update soon and you like it. When I do swaps I expect an actual comment. Why do you like the story? Why should I update soon?