Content Warnings aren't just for shocking or disturbing content.
They're for anything where it's unclear whether people want to see it right now, for example film spoilers.
Some people also use them for telling jokes, with the punchline revealed by clicking the warning open.
@feditips they're for being triggered by people not using it for stuff like: AI Art, Animals, Things with eyes, sarcasm, things in general, everything
You can't expect everyone on the internet to behave in ways you want. Sometimes the internet is like a dumpster fire, trust me there are lots of crazy shit on there. Luckily for us most people here usually put CWs where necessary, but we shouldn't take advantage of that and say we need CWs for every little thing. There is already a filter words setting in mastodon, and in Friendica its much better because you can click to show the post if you want, so its more akin to CWs.