in 2017, hk01 was criticised by the hong kong journalists association (hkja) for deleting an article covering release of new details of the tiananmen square massacre by the uk government archives shortly after the article's publication. pressure from founder yu pun-hoi was suspected to have motivated the removal. the article was later republished with a rebuttal, saying that mistakes had been made when verifying the information contained in the original version and denying there had been self-censorship.