A certain fediverse developer is again blowing his horn after discovering "skin detection" algorithms and thinking they'll solve the dick-pic problem and claiming he's the saviour to fediverse women. Except the dick-pic problem is one aspect of the much larger online harassment problem. I'm rolling on the floor watching all the development activity around letting the admin create spam rules. We went through that with email years ago. The spammers got around the rules - all of them. The skin detectors and sex organ detectors are likewise easily fooled with a colour filter and/or mild pixelation. In particular the dick detectors haven't been very well trained on alternate angles and perspectives. They only catch about 90% of the dick-pics in the best of circumstances and anybody who wants to get around them can do so in about 5 minutes. For instance, you can cut the photo in pieces and stack them. Once you go down this path you're in an endless war with the spammers and abusers and good luck staying ahead of them. Meanwhile rape and death threats can arrive and pile up at any time from hundreds of different accounts and IPs per second.
All of this because heaven forbid we don't want to allow women to actually have some control over who can stalk them and shove misogynistic crap in their faces. Not even as an *option*. Ditto for men and all other people, especially the disenfranchised. Start there. The dick-pics will take care of themselves once people can take control over their online life and over who is allowed into their personal spaces.