Once upon a time, a long time ago, I used to glance at the end of any novel I was reading to get an inkling of how it would turn out. It may have been a quirk of youth, the same way that modern youngsters playing platform video games research what ‘cheats’ are available to help get them onto the next level.
(Of course non-fiction usually plays by different rules, especially those titles on the scholarly end of the spectrum: the old advice on writing essays — “Say what you’re going to say, say it, and then say what you’ve just said” — generally applies, with the work’s conclusions revealed on the back cover or dust jacket (or, as in the case of papers, in the Abstract). The principle here is less what you conclude and more how you get to your conclusion.)
So. Spoilers. You either hate ’em or love ’em.