You need a lot of RAM (CCR with 16GB for example). We have tested 50'000 entries, and it took some 30MB of RAM, but we have not tested lots more.
30MB for 50,000? If that is true, then that is not bad. I hope there is not more than 50,000 illegal torrent sites. I'm hoping just to block the major ones.
And I know there is always a way around it. Just like door locks, they only keep honest people honest. There will always be pirates.
edit: I look at this like a roach or rat problem. You do not need to find the nest, just where they gather to feed.
It is obvious the motion picture companies know where to go to find pirates. That is how they found me and the OP to send us those "friendly reminders". Maybe they would be willing to share that info with us?
Actually, Paramount Pictures was quite frank about the thing. They did not seem to care as much that the user had downloaded the movie, but they were now a seeder. They were uploading the movies to others. Some users did not even know that was part of the deal when they "subscribed" to the torrent site.