Because behind a tweet is a person. A person with a mentality to think a certain way. A way that might be harmful to you. A way other people think. The twee

Because behind a tweet is a person. A person with a mentality to think a certain way. A way that might be harmful to you. A way other people think. The tweet itself is nothing, but what it represents can be massive. If someone tweets that all left handed users of hacker news who use custom CSS should be banned from the internet, no one gets mad because that tweet doesn't represent some widespread group of humans. It is so outside expectations people will assume it is sarcastic, but even if they were convinced it was real, unless it came from someone in power or showed traction, it would be ignored and none would be mad. When someone tweets that you doing something you see as natural should result in you being imprisoned under threat of death, and there are entirely communities backing that view and perhaps even a history of people being imprisoned for the same, it gets far more personal.