[emmet]

And as we all know, it is impossible to imply tone in written text.

[medstrom]

Exactly, it is the illusion of transparency. Have someone read something you've written out loud, you'd be surprised how often they use a different tone than you had in mind. Add to that a variety of cultures and backgrounds.

[quietbritishjim]

The comment you're replying to was being sarcastic. (I'm not sure about you!)

[bmacho]

It is possible to do that, but sarcasm in written text uses a different notation: /s, which you just proposed to abolish above.

I don't like your replies, so I stop this conversation with you.