BOOTSTRAP BILL YOU'RE A LIAR AND YOU'LL SPEND AN ETERNITY ON THIS SHIP.
Try it once more. I'll explain how it works again.
Type this to begin the text you want to be marked as a spoiler:
[spoiler=]
Note that this uses brackets [ ], not curly braces { }.
Once you've typed the beginning, type the text that you want to appear under your spoiler tag. Like this:
[spoiler=] Text goes here
Finally, close your tag with this:
[/spoiler]
So, the full text should look like:
[spoiler=] Text goes here [/spoiler]
If you've done it right, the text should appear under a spoiler tag like this:
[spoiler=]Text goes here
The text will appear like this immediately once you post, there is no wait time.
If it doesn't work, make sure you've spelled everything correctly and placed everything in the proper order, it can be finicky like that.