> But his concern with sin and punishment was apparent even as early as The TeXbook, where he imposes a wide variety of \penalties for poor typesetting---the wo

> But his concern with sin and punishment was apparent even as early as The TeXbook, where he imposes a wide variety of \penalties for poor typesetting---the worst sin of all, in his view. There are lots of pleasing, subtle jokes on this site, but the literal triple-hyphen here in place of an em dash is particularly brilliant.