I've been to the park a few times when they were scanning people very casually if at all. I'm assuming they didn't build the new high capacity entrance only to start scanning more aggressively just for the fun of it. Just like the discussion on TR about business needs dictating it for one reason or another, I'm sure they have a legitimate reason for the ramp-up on scanning.
EDIT: On to another thought - I have been a fan of keeping the amphitheater, mostly because Carowinds really needs more shows to draw on a larger demographic. However, since they hardly use it, then tear it down! Seriously, though, after being at Kings Island last week, an idea popped into my head. Here is what KI has:

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Carowinds should consider removing most of the exterior seating and just keep what is under the roof. Then they could have another set of shows there and free up some space around Fury for some more rides.

cwampitheater.PNG (711KiB)Viewed 3869 times
Just a thought.