"Own a copy" doesn't mean anything here. They have a non-exclusive sublicensable license to use Your Content. They have no ownership at all of Your Content, and

"Own a copy" doesn't mean anything here. They have a non-exclusive sublicensable license to use Your Content. They have no ownership at all of Your Content, and have no standing to do anything if someone commercially exploits it (except for content posted by Reddit itself). The individual comments/posts are copyrighted by the individual posters. To the extent that Reddit does not give you a sublicense to exploit the content, the individual posters would be the ones who could make a claim for copyright infringement. If you don't have an account, then you haven't agreed to the ToS. Indeed, you can visit e.g. https://old.reddit.com/new/.json https://old.reddit.com/new/.json to fetch the latest posts without ever even seeing a link to any terms of service, much less agreeing to any. If someone distributes that scraped data via torrent (they do), then (again, except for posts by Reddit staff) Reddit has nothing to say. They have no claim to that data.