From Bob Bauer:
A couple of days ago I discovered one of your Language Logs from last year that had a very interesting and very long back-and-forth discussion on the distinctive characteristics of Hong Kong's Chinese language.* I noticed.one commenter with initials HL** mentioned some particularly interesting things about the use of the term Punti 本地話*** to mean "Cantonese" in HK's law courts. Historically, Punti had referred to the indigenous Cantonese in contrast to the more recently-arrived Hakka immigrants. (By the way, for what it's worth, in the first half of the 19th century 地 was pronounced [ti], and then in the late 19th/early 20th century it diphthongized to [tei]).