It's possible this was already suggested, in which case I apologize, but: the ability to sort my own comments/posts by descending vote total ("popularity"), ascending vote total ("reverse popularity"), and descending (upvotes + |downvotes|) total ("controversial"?).
Use case: If upvotes and downvotes reflect "I want more of this" and "I want less of this" reactions, it is helpful to notice when they happen and know what posts/comment people want more/less of.
(EDIT: Split into two suggestions)
You gave more than one suggestion-- they're both reasonable, but I've been wanting to track recent karma changes for my posts/comments for a long time.
In the next month, the administrators of Less Wrong are going to sit down with a professional designer to tweak the site design. But before they do, now is your chance to make suggestions that will guide their redesign efforts.
How can we improve the Less Wrong user experience? What features aren’t working? What features don’t exist? What would you change about the layout, templates, images, navigation, comment nesting, post/comment editing, side-bars, RSS feeds, color schemes, etc? Do you have specific CSS or HTML changes you'd make to improve load time, SEO, or other valuable metrics?
The rules for this thread are:
BUT DON’T JUMP TO THE COMMENTS JUST YET: Take a few minutes to collect your thoughts and write down your own ideas before reading others’ suggestions. Less contamination = more unique ideas + better feature coverage!
Thanks for your help!