I think it's because at their core they're built around garbage, much like the packaged and repackaged derivatives that had A+ rating but at the bottom of the p

I think it's because at their core they're built around garbage, much like the packaged and repackaged derivatives that had A+ rating but at the bottom of the pile were a bunch of garbage investments that did a lot to help with the market crash in 2008. We would just like to warn people to not spend more on them than they can afford to pitch in the fireplace and burn.