i believe that the tildes should not be used in formal situations. much less if the rest of the sentence was meant to be conveyed in a mournful tone.
can't say it better myself~
是說如果是嚴肅的場合用 ~ 還蠻欠揍的吧... I've never used it at work either
never knew it's real name till now
^ hahahha then how do u refer to it in compsci!? XDDD lots of ~/
somehow i can imagine grace throwing squiggly lines at work anyways~
i called it "squiggly sign" or that "squiggly thing"
dude!! i'm very 正經 at work okay~~