It is pretty funny:
"Tell them what you are going to tell them,
tell them,
then tell them what you told them."
But I love your idea, cus I always write all the articles like that!

There is one issue I want to disagree about "number of letters per word: more letters, more difficult to read." I think that it works just with sentences, not with words, because if there is one perfectly fitting word, then you have to use it, even if it has ten characters. But it's just my opinion.