you can say the answer directly, just put a warning saying that it is the answer, and then just hit the enter key a bunch of times then put the answer so there is only spoilers if you click show more, i think about 20 enter presses should work.
Hmm, the author specifically put "(no spoilers in the comments, please)"
Better to rot13 or base64 so its impossible to see accidentally! :)
oh, sorry, i didnt see it
