I have found that the results from Baidu do not state whether violence happened or how many were killed in regards to the massacre. The event also seems absent from the Baidu encyclopedia: baike.baidu.com/item/天安门/63708
This is more than a government that doesn’t want to acknowledge any violence on their part, it acts to silence discussion around the event and the .ml community’s actions replicate that effect (which damns any objectivity the mods have).