Is there a way to order search results by the last time they had a release? Since it's already possible within lists, would that be easy enough to do?
I mostly search for completely scanlated manga exclusively. There comes a point where most search results are of the "not interested atm, maybe in a different mood" kind and newly-to-recently completed manga easily drown in the rest. In addition, it is more likely for a good new manga to not have as many points as it deserves than for an old one.

If you're doing the lists version by searching through the releases database table for every manga in the list, I'd have a simple proposal that would make it faster and less CPU-time intensive: In the same table where you store the general info of the manga, have a field holding the last time it had a release, updating that each time a new release comes out. Sorting by that should be trivial, if you aren't using that method yet for the lists.

________________
The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and riffle their pockets for new vocabulary - James Nicoll