Images tend to still be loaded, just not visible when you use spoiler tags.
+1.
You're right. It will be preloaded though it doesn't show. When you click, it will show. IMO it won't reduce bandwitch but can see the posts easily in phones and all.
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
I think there are scripts which can be used not to load before we click. Anybody know such script?
Kindly,
MZ