The thing is these sort of disagreements tend to stifle real constructive discussions on advantages, and methods. There are some important issues that deserve discussion about CC and OC. but the bigger issue of whether one should or shouldn't matter to anyone but oneself. Calling people dumb because they choose to carry a different method than you do is insensitive inappropriate and just plain dumb.
I would like to point out that there is no one perfect way to carry for every single person. I am a critic of SOB, pocket Gonad femoral artery, or Open carry. But circumstances vary and have made these the best option at sometimes for me. Any method that we do choose to carry does have disadvantages or drawbacks. But sometimes an often criticised unpopular method of carry may be the best for a given situation or individual.
Please indulge me while I give one personal example where I believe that OC is the right choice for me. I work in a place where the carrying of firearms is frowned upon, and per our employee manual is grounds for termination. Accordingly, I choose to not carry while at work. My dress code also calls for tucked in button down shirts in warmer months (sweaters are OK when it is cold).
My usual EDC is a 1911 carried in an OWB holster. IWB carry of anything beyond a mouse gun being a severe challenge due to back issues. My usual MO is to get dressed, snap on my OWB holster and head to work. When I get to work I unholster in my car and go into my office. But if I stop to get gas, or go somewhere for lunch, then I choose to OC my 1911. Other options include untucking my dress shirt and looking like a slob, or pocket carrying my J frame. I have considered both of these and after weighing all pro's and con's I have decided that my best option is to OC my 1911.
Is this decision "dumb"? I don't think so. Is this the "dumbest thing I could possibly do in a public place"? No. I can think of around 100 things I could do in a public place that would be "dumber". Just off hand, slapping a cop in the back of the head, unprovoked, would definitely be "dumber". But I will say that I believe people who call others "dumb" for making these decisions are, at best, ignorant. And to copy a phrase from another poster in this thread, let me just say "bless their hearts".