This is a natural byproduct of our online society, and it's not just about books.

Almost the entire planet has access to the internet, and whatever you post on social media (including Reddit) exposes you to potentially millions of comments and responses. Not all of these comments are going to be nice, and they sting because we expect and prefer positive feedback.

A few weeks ago, I posted something on a romantic novels subreddit. My post got immediately locked, and most of the comments were accusing me of things I didn't say. At first, I was a bit offended because I didn't expect a negative response. But then I realized that the community there is just very sensitive to critique, and they were projecting their insecurities onto my post. Other subreddits revolve around criticizing the main topic to death, and any positive comments get downvoted because it's all about the snark.

In conclusion, people will have their opinions, and some of them will be aggressive. This is the nature of social media (and I hope it will evolve into something more friendly/ less toxic). In other words, don't let this get to you and keep doing what you think is right- even if other people disagree with you.