If someone wishes to give their readers the choice of whether or not to access a piece of information, it is in very bad taste for a third party to then take that choice away for no good reason.

I rot13d it in my comment just because it's funnier if you figure it out yourself, and like many stealth jokes, it's easy to figure out once you know there's a joke to look for (if you've read canon). If it was an actual spoiler for the chapter that would facilitate discussion because it wasn't just a random throwaway joke, then I wouldn't rot13 it.