I'm sure this will be addressed in the vB4 upgrade, but while we haven't done that, it would still be a good idea even when we're still in vB3.
What I'm proposing is two changes in the spoiler tag:
- Allow the spoiler to have a custom title. The BBCode for this is [spoiler="Insert spoiler title text here"][/spoiler] (Instead of just a "spoiler: click to show" caption.)
- Allow spoilers to be shown/hidden instead of just shown.