There some boards, where moderating staff is just going crazy about spoilers. They just want to hide everything inside of the spoilers. But in fact sometimes spoilers are good to organize content.
This simple and light plugin won't change any code of your posts, it won't also add any new custom short-codes.
The only things this plugin do are following:
How to use:
Just put any bold text inside of the spoiler, plugin will automatically find first bold piece of text and add as spoiler title.
You may adjust CSS if needed by changing custom CSS stylesheet file you may find on template code edit page.