@tisha @ShadowJonathan "Just ignore it" is downplaying the issue. People that don't want to see it or can't handle seeing it shouldn't have to see it. Be explicit so that filters actually can make up for where content warnings are missed. Instead of just posting a picture with no alt text & no post text, say "Look at this food I made!" & add the alt text "A plate of food. It's a sandwich with wheat bread, lettuce, & ham.", now if you forget to add a content warning it's very easy to catch with filters because the subject is directly mentioned in the post.
@jackemled @ShadowJonathan I always put text and alt to give context, but I almost never CW, because I don't post anything NSFW or gory or shocking.
I think these are good intentions, but I also think that no one can expect the whole world to adapt to them. If you think it should, then absolutely every toot in the entire fediverse should be CW, and it doesn't make sense anymore.