I can totally understand why you would abbreviate YANBU, or IYSWIM etc, but it takes no time to type, son, daughter, husband, partner, they're one word!
It makes my teeth grind a bit everytime I red DD1 and DS2, beccause I would never say,
"Why, let me tell you about my dear daughter, or my dear partner", it makes me CRINGE!
Does anyone else feel a twat writing these?