I've just been using it whenever I use the WYSIWYG editor for my posts. I believe that every WYSIWYG edited post starts with "}" by default. As you can see, this post we're on doesn't have that because I didn't publish in that editor after switching between.

Not sure if it'll "take-off", it feels like a good opportunity to mess around and see what's accepted. It should provide plenty of discussion for the VYB Community Standards.