Hey Dale, that's something different, but I remember that hover over feature. It's done with a source code on java script; I don't know how it works really either, or if Jive can do it.
As far as spoilers go, I am much more familiar with them being used in the ways I mentioned above than being used to reveal hidden answers. So This:
There is a portfolio of pictures above this paragraph, inside a spoiler. if you click on the spoiler, you can see them.
______________
Becomes this:
There is a portfolio of pictures above this paragraph, inside a spoiler. if you click on the spoiler, you can see them.
_______________
Usually, there is hover-over text for the spoiler, so if you hover your mouse over it, you get the message "click to hide or reveal message"
c2q
Same solution. Slightly different mechanics 
What JonesCarpeDiem is talking about it sounds like something that is possible (Title with excerpt" view) but real estate wise it results in A LOT of scrolling because it adds it directly to the page. The excerpt it does pull is often too short to provide any real added teaser value. Having a succinct descriptive title often is enough to determine what the topic is about.
I've seen other sites have a hover over state that will show an 1 paragraph excerpt of the content when you mouse over a topic title. I've not seen that as an option here for me. Doesn't usually work on tablets or phones though. Additionally, since you're actually reading, at least one paragraph of the info, I don't know if it counts as you having read at least part of that topic.
Mark
EX Community Manager
