While poring through my own overlong posts pontificating on concepts I do not fully understand, I came to realize why most writing on the web sucks. It reminds me of the quote from Blaise Pascal (or maybe Mark Twain) that goes something like: “I sent you this longer letter only because I did not have the time to make it shorter.”
Consider brevity and you’ll make a stronger point. Either that, or write for Wikipedia.
(That diminishing return of useful knowledge mentioned above is the effect of what’s known as the bike shed problem.)