If I had to hazard a guess, I bet most of the complainers and the silent lurkers here don't read anything over 140 characters in length, or get their current events information in anything over 30-second sound bites. Anything more than that is just too hard.
What's really going on, of course, is that you are making them feel inferior about themselves (in their minds) because you are well-informed, eloquent, grammatical, interesting, and very, very intelligent. The monkeys can't have you climbing higher than they, so they're verbally trying to pull you back down.
I was particularly amused by the shift, early on, from people accusing me of not providing enough specifics (when I was trying to be brief so as not to over-tax their attention spans), to people accusing me of being long-winded (when I provided the specifics). There is, of course, no acceptable length for them, because what they actually object to is the argument, not the way the argument is being presented.