I've long said, Flickr's solution works pretty well. They have groups, you can form any group you want and set your own group rules. You can set filters and you can opt to view "adult" content or not (take me back to kittens").
It's all about opting-in.
You have certain taste, go find that group or found your own.
You don't like certain groups, don't become a member of such group.
You want to have your own private invite only group, go ahead, create your own invite only group.
Flickr never achieved the prominence of FB or IG, or flash in the pan like Tumblr, but I think they built it from the ground up to provide a decent service for everyone with a light touch. For illegal stuff, yeah, you get kicked out, that's legit. Need to escalate to site admins, that's possible too but only if the group admins are acting in bad faith.
It's all about opting-in.
You have certain taste, go find that group or found your own.
You don't like certain groups, don't become a member of such group.
You want to have your own private invite only group, go ahead, create your own invite only group.
Flickr never achieved the prominence of FB or IG, or flash in the pan like Tumblr, but I think they built it from the ground up to provide a decent service for everyone with a light touch. For illegal stuff, yeah, you get kicked out, that's legit. Need to escalate to site admins, that's possible too but only if the group admins are acting in bad faith.