If you use the sensitive-image overlay but don't describe your image, or if you describe your image but don't CW it, I will make this face: 😬 but I won't take action because the rules just say you have to use the overlay.
If you don't use the overlay for nudes and sexualized images (and graphic violence and... you've read the rules, right?), regardless of what you do in the text, you lose public-timeline posting privileges. Just so you know.
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!