After a very long period of sitting derelict, I'm happy to report that user profile pages are once again up and running, and now feature that user's listing of stories right on the profile page (as opposed to a supplemental tab, as before).
I've also cleared up a few of the bugs that have long plagued the Gold Stars earning system -- namely a problem that was preventing me from enabling stars for votes. This is working as advertised now -- see this page for details on what earns what (and let me know if you feel anything is unfairly valued). And to see where you rank on the site, check out the HHR Leaderboard.
I'd also like to ask everyone to keep an eye on these features over the next short while, and report back any glitches or bugs they notice. I've tried to be diligent about implementing this, but there's certainly a chance something was overlooked or isn't operating properly. One known issue is my ranking of 9th. For a long time I left myself out of the race for top spot, and so my star count is not properly reflective of my contributions to the site. I've discussed it with myself, and after a few calming drinks, I'm ok with it.
A couple changes still to come: 1. Re-addition of the "You are currently ranked XX on the site" (I need to find a new way to handle this that isn't extremely taxing on the system. 2. Adding stars when your comment gets "liked".