Who wins?
"ttyl" vs "kk"
"kk" wins 51% to 49%. 36 more put them in the same row. From Ways to Say Goodbye in a Text Tier List. Pick a side.
possummain84 on "ttyl": my grandma says ttyl and it's adorable
chunky_llama on "kk": kk is cheerful, no notes
Ways to Say Goodbye in a Text Tier List: the full ranking