You know, the make-vs-do question is one of those eminently closable questions for which an undeniably scintillating answer could indeed be crafted — provided that one were sufficiently motivated and informed, and gifted with the time to throw (away) at it.
@tchrist I'm talking about all the crap that gets jammed into a page, since that very issue I have to deal with every day. I analyzed some of our pages and found that 90% of the CSS was not getting used on any given page, yet the entire cascade had to be applied to every element on the page before everything could be properly rendered.