I'm always amazed when I get comments. I can't believe someone actually cares enough to read my story and then WRITE about it. It's so weird.
I also love writing comments for other people, but I never feel like I have something to contribute! All I ever say is something about myself or my experience, but none of it ever has anything to help the poster out with. If I suddenly do have something worthwhile to say, though, I'm so quick to comment with it.
All in all, though, I don't think my stories have anything worth commenting on, which is why I really get hardly any comments. I hope to improve on my stories in the future.