cuz u can save ur eyes from curse or be mentally prepared

Yes, but not only for the purpose of protecting eyes from unseeable images :]
It could also be useful for video game update spoilers, etc

Tru

It's called the NSFW button

Cursed and nsfw aren't þe same

ye but nsfw images are hidden from those who didnt had the nsfw button enabled
but those who have it enable can see it without any signs