This happen with me also, I don't read text, I just scan it quickly. If the author didn't interest me from the starting that there's a result he wants to get, then I'll leave (and I have done so in this one)
All too frequently missing.
But we're trying to glean insight and information from blog posts and articles often produced by time starved writers, first time bloggers or similar. The art of communication is being lost in search for the sound bite, the skim reader- the 20 second attention.
Perhaps we should all commit to reading a book a week- or how about writing a short story: surely the better we are at communicating then the more enriched we will be as a society?
My point is just that great writing takes more attention and time, and so will simply have a smaller audience. I wish writers would worry less about putting together just the right turn of phrase and simply say what they want to say.
Well, I think this is all very personal and our experiences cannot be generalized into a trend. In direct opposition to your experience, I've recently started to actually read books, instead of just skimming them for the story. The balance was tipped by the first book of the Gormenghast trilogy "Titus Groan" by Mervyn Peake... really wonderful prose.