Now we know why the Dimocrats didn't want Elon to buy Twitter. They didn't want Elon to expose their collaborating colluding dirty laundry. The FBI and the DNC colluded with Twitter to affect the outcome of the election and that is illegal.
Twitter Japan is also experiencing bias. Chinese Communist Party trolls and South Koreans keep mocking Japan for being nuked by the US during world war II and make barbecue Japanese jokes about it and when the Japanese complain or try to say anything back they get banned.
Elon Musk was made aware of it. Nobody knew about it. South Korean and Chinese communist Twitter trolls allowed to harass and insult Japan and Japanese twitterers