I come from a fairly reserved culture, and the way I see it is it is not to appease folks like me, it is to prevent kids from encountering it in ways that are harmful. Nudity is not wrong, but I think that in some contexts the manner in which it is conveyed can be harmful even on a dating app, and so long as our main mechanism of discriminating between what is and what isn't 'an adult human' is a checkbox asking "are you of age?" then we're going to have to keep it a little clean to make things easy and profitable. It's tough that as an app owner-operator you have to punish the whole to protect the few, there's just no easier solution.

They cared a lot less before the lawsuits started hitting.

Their appreciation for nudity is offset by their aversion to standing around in courtrooms or paying money for an expensive representative to do it for them.