In 2010 Reddit was center-left, with a high degree of variance between subreddits. Today it is a far-left echo chamber in most large subreddits. The process o

In 2010 Reddit was center-left, with a high degree of variance between subreddits. Today it is a far-left echo chamber in most large subreddits. The process of change was gradual. Like all echo chambers it is a result of distillation, with marginal moderate users progressively leaving in response to seeing the shrinking frontier of acceptable discourse.