What is even the crime here? "This person requested a torrent link" "This person posted a torrent link". What do they expect to charge these people with, even if they could track them down? It isn't like anyone is uploading torrents directly to reddit.
On that note, is it illegal (or does your service provider send you a warning) if you download a torrent link or does there have to be proof you downloaded the actual content of the link?
I would assume they want the identities so they know who to investigate more closely. If you are commenting on a piracy sub-reddit, you are probably doing some torrenting.
