If you’re new to Mastodon, you may at some point find that you’re being pressured to put your posts behind a content warning (CW). Although CWs make sense for things like images of violence or nudity, some people are bullying others to put CWs on discussions of politics, racism, etc.
Please know that you should not feel pressured to obey these individuals. They do not speak for all. If someone does not want to be exposed to these topics, Mastodon gives them all the tools they need to avoid them, such as keyword filters and the ability to block or mute people who are posting things they don’t like.

@thomasareed
One thought to amplify your point about opinions on CW not applying to all.

It can vary by server, and that's okay! Life is complicated, some topics and audiences have difference needs than others.

For example, you'll see CW applied to photos of people's faces on Autism-oriented Mastodon instances.

There is also some discussion about changing this function to "Content Notice" instead.

@mitka Sure, different instances may have different rules. That’s one of the interesting differences between Mastodon and Twitter. However, it’s important to keep in mind that one instance’s rules don’t apply to all.