Something tells me you've never visited the inside of a prison. What both your 'idea' and the Popcorn app share is a surprising level of centralization for what is a highly illegal service. The fact that you have servers trawling the known services where warez groups dump their material means you go to jail. There's no if or but about it.
It's pretty common practice to ship the app without any services configured and let the pirates spread the 'illegal' .ini files, binary blobs, or whatever else that plugs in to it.
If you knew how it all worked you would know that such information is just that, information, quarantiened information proxied tens of times until it gets to me or you, and no one in their right minds would care about that or deem it harmful.
And yeah, sure, the pirate bay knows it, I know it, it's facilitating illegal stuff. Is it immoral? I don't believe so.
