Reddit model works due to the size of Reddit's user base, and mostly on the larger subs. If you look at smaller subs, you can find examples of astroturfing and

Reddit model works due to the size of Reddit's user base, and mostly on the larger subs. If you look at smaller subs, you can find examples of astroturfing and vote brigading. But in those cases, looking at the poster's history and then reporting them to mods is a pretty good (albeit manual) solution. I think Reddit-PH would still stand a better chance since it discourages anonymity and participation for non-established users.