Yeah, you gotta draw the line somewhere. Just wearing a mask and talking to your horse is not going to make you a superhero in my book. So is Zorro one too? Guy Fawkes? Captain Kirk?
For the purposes of this thread, and to satisfy our friend Mister N, we're sticking to traditional comic book heroes here --- Marvel, DC, that sort of thing. No wussy pseudo-heroes like the Lone Wanker.