just having a voting mechanism, might be gamed by unsavory charcters or groups to game such a system, unless voting requires your clear name id, which comes with other issues of course.
Why? I thought you were an anarch? Why do you fear that something could be exploited? Why the gatekeeping, when all users should be monarchs?
Communities work because there are members that take care about them, and foster them. If there aren’t then everything will collapse because not everyone shares the same value and even outright disrupt or destroy those communities.