They have human moderators who by and large care about maintaining the quality of the communities they moderate, and give those moderators buttons to delete pos

They have human moderators who by and large care about maintaining the quality of the communities they moderate, and give those moderators buttons to delete posts and ban users. Although FWIW, reddit seems to have it's fair share of astroturfing (at least, in my own anecdotal experience), it's just comparatively less egregious than rawdogging the google results.