Pushing hard on moderator tools. In the short term, Reddit should watch its moderators, look for usage patterns, and build systems to reduce moderation effort. In the long term, Reddit should develop artificial moderation (AM).

Reddit is the natural place for the discipline of artificial moderation (using AI / ML to help moderate public forums) to develop. For example, an automated "argument detection" bot could intervene when two participants start going down the warpath, acting like a janitor who pushes two rowdy students apart when they start fighting. Or, a bot could detect when a post consists entirely of one participant insulting another and take appropriate action.

These are difficult problems, but Reddit is sitting on a goldmine of training data in the form of the human-generated moderation logs. Reddit should either hire the talent to develop such systems or partner with those who already have (Google / IBM / ...).