Earlier quoted context omitted.
> HN is not a chatroom - it's a news website. I normally wouldn't comment on this but since you've self-identified as being interested in correct grammar and punctuation, I will. A hyphen isn't appropriate where you've used it. It should be an em dash. You can type an em dash with shift+option+hyphen on a Mac or by holding alt and typing 151 on Windows. http://logicmason.com/2013/the-difference-between-hyphens-en...
I never use Unicode, I use ASCII.
:D