Disclaimer: I wrote this article and made this website.
There was some talk of this issue in the recent fediverse inefficiencies thread. I’m hopeful that in the future we’ll have a decentralized solution for file hosting but for now I deeply believe that users should pay for their own file hosting.
And moderation of this kind of content almost always sounds like torture when you hear about what facebook and the like are outsourcing.
Theoretically, this is a good problem for computer vision/machine learning. But there are a LOT of false positives (I think it was Aftermath who did an article on a study of when a nipple becomes female?). And… what ethical responsibility do you have to report on the fiftieth time that SheIsReallyAnEightThousandYearOldDragon_6969 uploaded CSAM? And how quick do you think people are going to lose faith in you and start wondering if you’ll also report on the rampant piracy?
And… there are also false negatives. At which point you find out you have been hosting something truly heinous for the past few months… possibly when local law enforcement tells you.
Like a lot of things: it sounds great. But nobody in their right mind is going to host this for free. And once you start accepting money you start opening yourself up to a LOT of regulations.