Not really sure what this is trying to solve. If it's some legitimate leak of public interest then the organizations active in this space often have a tip line

Not really sure what this is trying to solve. If it's some legitimate leak of public interest then the organizations active in this space often have a tip line / encrypted drop where you can put it. If it's something that's not of interest to many but you want to put out there for some reason then what's stopping you from uploading it to some random one click hoster and posting the link in random places on the internet?