I'm concerned many posts (including my own) may be hard to take in. An intimidating answer can make it too easy to look at a long answer and think "tl;dr".
I think the Inverted Pyramid model is a good way for us to combat this problem.
The inverted pyramid is a metaphor used by journalists and other writers to illustrate the placing of the most important information first within a text.
The Inverted Pyramid is a staple of online copywriting as it's optimized for people with little time who have no reason to stay on your site long; you have to give them a reason to care.
I tried to exemplify the Inverted Pyramid with my answer on this question. We start with the conclusion and then lead into the details after we've "hooked" the reader. Finish off with a restated conclusion and "good to know" information.