Oh, a number of reasons; The carefree tone of the approach. The implication that I didn't spend too much time considering my opinion. The fact that my carefree, ill-considered tone is combined with a rejection of the idea that studied experts in a particular field actually have a clear idea what they're talking about based on a clearly limited understanding of what it is they're studying, as opposed to your pretty clearly well-thought out and considered response to a field you actually investigated.