The only people who would get "screwed" by the overnight allocation then free-access QuickCheck policy that seems to be in place now is the last minute business flyers (who are likely WP or SG anyway). If they book after the allocation is done it's likely they'd get a not so good seat assignment.

I was always under the impression though that the first row or two (eg: row 4/5 on a 737) were held till some point prior to departure for just those sorts of pax. Of course, I usually show up fairly early for flights > 1pm ( ) so it's not unusual to see a window or aisle available in row 4... which seems to nullify that theory. Perhaps of course QC is actually allowing me to see those since I'm PS and not totally to be ignored (only 80% ignored)??