Have you manually reviewed some of these clusters? Automatic clustering for subjective topics tend get gamed by users (if they can be influenced by users) or labeled incorrectly.
Yeah, the first pass for the clustering was SciKit's Agglomerative Hierarchical Clustering Function and then the clusters were manually tweaked in an attempt to increase accuracy. Clusters are also manually updated and curated, so hopefully they shouldn't be able to be gamed at the moment.
pitherandd|5 years ago