“A king sized bed in a frum publication”
Would you mind telling me what is not tzniusdig about that? Are you saying it is ok to show an ad for twin beds but not a king size? Halacha requires two separate bed at certain times, it does not require that both of them be tiny. If they have room for a Kingsize, kol hakavod, as long as they adhere to halacha, what business is it of anyone’s? Sometimes people go too far int heir quest for lack of tznis. We have enough material to keep us legitimately concerned, why look for tzoros in every corner?