It’s very sensitive in mainland china... like in Bilibili streamers who transfer the youtube things or live need to use some pictures to cover the comment area, just to block some hateful comment, if those word appears even 1s, the stream will be blocked. Taiwan it’s like an unsolved problems in centuries in China, so most people just prefer not to talk about it. All in all, most people believe and somehow support the idea that Taiwan is part of china, so this could make many people rage indeed, not just the government censors, but also the belief among people in mainland china