Readers discuss social media etiquette, Hong Kong think tanks, abuse of public housing, and a show of Hong Kong professionalism Feel strongly about these letters, or any other aspects of the news?

While ByteDance has said they do not plan to sell their TikTok US operations, this has not stopped potential buyers from lining up to bid.

Next Race Day: Jan. 22, 5:40 a.m. ET, Happy Valley ...