As shown in APNIC Code of Conduct, you can ask APNIC to delete comments if you want.
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APNIC does not routinely monitor or moderate the discussions on the APNIC Mailing Lists. However, APNIC reserves the right to delete or redact comments that contain content that APNIC considers to be unacceptable. This includes (but is not limited to) any content that:
Is being used to abuse, harass, stalk, or threaten others
Is libellous, knowingly false, or misrepresents another person
Infringes upon a copyright or trademark
Violates an obligation of confidentiality
Violates the privacy of others including posting emails of others without their permission
Uses derogatory or inflammatory language
If APNIC exercises its right to delete or redact a comment, it will say so and explain why. If you believe that a comment on the Mailing Lists contain content that is unacceptable, please notify APNIC by emailing pr [at] apnic.net.