I find this a bit pointless. The site is good as it is and adding more features like this would just clog up the interface.
I don't see this feature as an absolutely necessary but rather as a good-to-have for some advanced users.
I would recommend to use your browser history for that purpose. Does the job perfectly for me. Just use "superuser.com" as a filter and you will get your most recently visited pages.
You can also look at improving your browser history with one of the existing addons. For Chrome addons see Are there any advanced options for Google Chrome's history search?
