Sorry about the initial bugginess; definitely not the best way to introduce changes. Should all be working now, but please let me know if you run into something odd.
What if there have been a rash of Qs that are duplicates, with people possibly being driven to post the same thing repeatedly precisely because there has been no accepted solution yet?
In practice, this is pretty rare. To the extent that I would consider it one of those "exceptional" situations moderators are supposed to be useful for.
That said, here are all the questions from the past 90 days where at least one vote would've been impacted by the "must be answered" restriction:
Remote Desktop can't connect to the remote computer
Bank card-reader causing Outlook to prompt for card
Ping flood attack every 5 seconds
http://superuser.com/q/512510
http://superuser.com/q/512524
Translating Documents from a Foreign Language into English on my Computer?
What's the difference between Defaults and Properties when changing cmd.exe or PowerShell's settings?
Cannot start Windows 7 repair, says different system version
http://superuser.com/q/528602
Is there some (free) RDC/VNC solution that allows to connect to PC behind NAT without doing router configuration?
Battery charge percentage jumps from 100% straight to 93%
(Note that some of these are closed as duplicates of multiple questions, some collected close votes that weren't "Exact Duplicate", and some ended up being closed by moderators anyway)
Look 'em over, see what you think.