Bea Arthur complained to the writers
By the third season, Bea Arthur had had enough of the screenwriters coming up with jokes about her personal appearance and stood up for herself.
Writer Christopher Lloyd explained: "I think that was a mistake we made, to be a little bit insensitive to someone who was an extremely sensitive person... I think we pushed that [the jokes about Arthur's appearance] a little bit far and I think she let it be known she didn't love that."