https://news.ycombinator.com/newsguidelines.html
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...
- China actively works to remove mentions about the Tiananmen Square Massacre.
- There are CCP sympathetic posters on HN. I've had them reply to me before. They have identified themselves Chinese.
Combining these two into the statement, "There are posters sympathetic to the CCP stance of censoring the Tiananmen Square Massacre who are flagging these posts," does require some information not available on my side of the screen, but it's not exactly a big jump.
And on a completely personal observation, it wouldn't bug me much if HN did not tolerate such members' attempts to censor the Tiananmen Square Massacre - did not protect them as a group from criticism. Intolerance of intolerance being required for a tolerant society, and all that.