What is the meaning of Ibn Qudamah's statement in Al-Mughni regarding pubic hair: "It is worthy of removal with a razor," and what is the criterion for it being worthy of removal with a razor?

Ibn Qudamah's statement about hair growth as a sign of puberty refers to the coarse hair around a man's penis or a woman's vulva, which merits being removed with a razor, and not to fine vellus hair. This is what Malik and Al-Shafi'i stated in one opinion.