The real lesson here is that, whether or not it's morally acceptable randomly drop a spoiler into an article, you probably shouldn't do it because it's an instant derail. We're not talking about the content anymore, now it's about the spoiler.
In five years I'm sure it will be like "spoiling" the plot-twist in Empire Strikes Back: no one will ding you for spoilers because the plot will be common knowledge.
Right -- in five years. Just like nobody will ding you for telling them what happens to Romeo and Juliet, or that thing about Darth Vader, because by now it's assumed that anyone who cares to experience that thing un-spoiled has already finished.
The last episodes of Breaking Bad have only been on Netflix for about 6 months. It's completely plausible that people who decided to start watching after the series reached its critically-acclaimed ending might still be a couple seasons shy of the ending. Hold your spoilers for another 3-6 months to be safe.
They tried to spoil Breaking Bad but hey got it wrong.
spoilers:
WW didn't die violently because of anything about the drug business. He was dying of cancer and chose to take risks that would have had him die violently no matter the outcome. The specific business he was in was immaterial.
In the end he died from his own bullet, but not until he'd asked his former partner to shoot him dead and been turned down.
