It's a Russian-speaking porn tracker* (BitTorrent). I confirm that it's legit and is as safe as any other legit porn tracker. I've been using it for years. And the JAV section there is quite active, though compared to the Western porn sections, there aren't many new releases there**I've not heard of that site before, but if I'm understanding you, I would upload the file, and someone will download it, and it will enter the collective, so to speak?
edit: Browser says not safe to go there. I reckon I'll have to spin up a VM. Still, is this the gist? Upload the stuff and people will start to pilfer it and it will become one with the internet?