My suggest would be to remove both the } macro and the # snippet (the # snippet constantly annoys me because I type #{ and end up with #{{}} ), but at least one other person wants to keep the # snippet, so I'm not sure what the proper response is.
I second the removal suggestion. I always end up with #{{}} myself, and I don't find it really saves that much time anyway. Plus, what if someone just wants a # in their string?