Comment 13 for bug 771748

If you read the btrfsck manual even in quantal, you will see:

"Btrfs is currently under heavy development, and not suitable for any uses other than benchmarking and review."

I took that into consideration before working around the long scan at boot. Anyone that is using btrfs is clearly experimenting. I'm just passing it on to the other people experimenting (the people reading this bug report).
I'm confident the developers are on track. No need to tell them what they already know.