@Castle -

Fear not; there are plenty of people who are willing to be critical when necessary. Some of us *ahem* have just had to learn how to be smarter/wiser with regard to target, venue, and timing of such criticism.:)

Also, as I've learned: #patcheswelcome. If during development (i.e. before the beta) you see something that could be improved with Twenty Twelve, create a patch, and submit it to Trac. Criticism accompanied by a contributed patch to fix the issue is generally much more well-received.

I have suggestions for Twenty Twelve, and that's exactly what I intend to do!