I like to use a lazy variant -- it's not a double dash, or a weirdly written plus, it's a an em-dash that says "I don't even have this key on my keyboard, are you actually using alt-codes or what am I missing?". Not with a shout or a whisper, but with the quiet courage of just being -- but not an incomplete representation of a whole, but rather the fullness of that very distillation of honest, simple pragmatism. Not less, just different.
The above isn't slop. It's shit though!