There's a rather large difference between an enormously popular movie/t.v/toy/game franchise that his been front and center in society for decades, and a book series that would only really be known to many people who like reading fantasy books, a good percentage of whom never finished the series. They aren't even close to being in the same league.
My take on this discussion.
1. Not really a spoiler to talk about the Vader reveal.
2. It is a spoiler to talk about reveals in the Wheel of Time.
3. If people have asked in a non-spoiler thread not to have Wheel of Time reveals spoiled, it's kinda jerkish to continue to spoil things. You can start a spoiler thread to discuss the series in more detail.