I'd love it if submitted links always appeared on the my "submission" list. Currently, they only appear if the link is a new submission, with submissions of existing links being treated as an upvote and added to "saved stories".
This is a reasonable default for the scoring purposes, but caught me today when I was looking back for a story I was sure I'd submitted some time ago. Because I went through the process of submitting it, I thought I would be able to find it by scanning my "submissions". No such luck.
In the absence of a personalized recommendation system, I also find it useful to look at what else my favorite posters have submitted. Since "saved stories" are not visible to others, whereas "submissions" are, this is lost information.