Hmmm Aaron, I personally find the one letter per line method a bit too cumbersome myself and a little long winded when I do! want to read others posts, indeed I always thought the point of that method is that when a sighted person is reading scrolling text the text of the spoiler is enough lines down the page that they won't read it by accident.
That's why I just myself tend to write something like "spoiler for Starwars! beware, read no further ylest yee be spoiled!"
Luke Skywalker is actually Darth Vader's son,yeah! bet you didn't know that .
Still, there's not really a right and wrong way here, and just so long as there is something to pressage a spoiler so people can stop reading if they wish.
As I said, if a hard coded solution isn't possible, maybe a suggestion in the faq that people mark spoilers as a curtacy to other members might help people remember, though I'd rather not have any hard and fast rules about spoilers, indeed I've seen forums where moderators get really on people's cases aboutt spoilers and they're definitely not pretty.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)