I know this has been the case since around the beginning of these boards and I'm only bringing it up now at the end of the boards' lifespan.
The Insert Spoiler icon (
http://www.minmaxboards.com/Themes/Thing/images/bbc/spoiler.gif) is missing. It's supposed to show up among the controls when you're making a post, right in between the Insert Quote and Insert Unordered List buttons. Since the image itself is missing, you just have a line of text ("Insert Spoiler") instead.
Going to the image's url gives a 404 page missing error from Bluehost. I think the icon file is just missing, or possibly misnamed. Not a big deal.