Others already noted that we need contrary opinions more than contrarian people per se. Let me make another distinction. Is the goal a community with a diverse set of opinions, or more people who are vocal and articulate about some minority opinion? Maybe the latter goal is worth working on, but I suspect the former has already been reached. Let me go with myself as an example. I don't think anybody ever saw any of my comments as contrarian, and I am sure nobody associates my nick with contrarianism. The thing is: I would bet against Many Worlds. I am not a consequentialist. I am not really interested in cryonics. I think the flavor of decision theory practiced here is just cool math without foreseeable applications. I give very low probability to FOOM. I think FAI as a goal is unfeasible, for more than one reason.
I am not vocal at all about these positions, and you will very rarely see me engage in loud debates. But I state my position when I feel like it, and I was never punished for that. (I don't have any negatively voted comment out of a few hundred.) I think we would see a similar pattern when checking the positions of other individual "non-contrarian" commenters.
Me too:
I would bet against Many Worlds. I am not a consequentialist. I am not really interested in cryonics. I think the flavor of decision theory practiced here is just cool math without foreseeable applications. I give very low probability to FOOM. I think FAI as a goal is unfeasible, for more than one reason.
I used to be very active on Less Wrong, posting one or two comments every day, and a large fraction of my comments (especially at first) expressed disagreement with the consensus. I very much enjoyed the training in arguing more effectively (I ...
I'm worried that LW doesn't have enough good contrarians and skeptics, people who disagree with us or like to find fault in every idea they see, but do so in a way that is often right and can change our minds when they are. I fear that when contrarians/skeptics join us but aren't "good enough", we tend to drive them away instead of improving them.
For example, I know a couple of people who occasionally had interesting ideas that were contrary to the local LW consensus, but were (or appeared to be) too confident in their ideas, both good and bad. Both people ended up being repeatedly downvoted and left our community a few months after they arrived. This must have happened more often than I have noticed (partly evidenced by the large number of comments/posts now marked as written by [deleted], sometimes with whole threads written entirely by deleted accounts). I feel that this is a waste that we should try to prevent (or at least think about how we might). So here are some ideas: