You can do without voting. All you need is a way to discern what is popular, in order to display 'popular' and 'new' categories. For example by measuring comments and clicks, maybe the amount of time users spend on the comment page relative to the amount of comments. Not a great idea since it can be gamed, but what can't nowadays.<p>It would probably favor clickbait, violence, etc like every other system. The only escape from this on a user-submitted site, if there are no subcategories outright banning certain content, is what's already in place, just sorting everything by date.