Yes, aside from selling. It's important for archival efforts. In the case of Reddit and Wikipedia, it's also an important part of how the volunteer moderators/

Yes, aside from selling. It's important for archival efforts. In the case of Reddit and Wikipedia, it's also an important part of how the volunteer moderators/contributors run the site. On Reddit there are a huge selection of community-owned moderation bots that monitor subreddits for posts matching rules.