I'm surprised by this idea of treating SSC as a rationalist hub. I love Scott, Scott's blog, and Scott's writing. Still, it doesn't seem like it is a "rationality blog" to me. Not directly at least. Scott is applying a good deal of epistemic rationality to his topics of interest, but the blog isn't about epistemic rationality, and even less so about practical rationality. (I would say that Brienne's and Nate's 'self-help' posts are much closer to that.) By paying attention, one might extract the rationality principles Scott is using, but they're not outlined.
There's a separate claim that while Scott's blog isn't about rationality in the same was LW is, it has attracted the same audience, and therefore can be a rationality attractor/hub. This has some legitimacy, but I still don't like it. LW has attracted a lot of people who like to debate interesting topics and ideas on the internet, with a small fraction who are interested in going out and doing things (or just staying in, but actually changing themselves). Scott's blog, being about ideas, seems that it also attract lots of people who simply like mental stimulation, but without a filter for those most interested in doing. I'd really like our rationality community hubs to select for those who want take rationality seriously and implement it in their minds and actions.
On this selecting for -or at least being about- the EA Forum is actually quite good.
Lastly, maybe I feel strong resistence to trying to open Scott's blog up because it seems like it really is his personal blog about things he wants to write about - and just because he's really successful and part of the community doesn't mean we get tell him now 'open it up'/'give it over'/co-opt it for the rest of the community.
Cross Posted at the EA Forum
At Event Horizon (a Rationalist/Effective Altruist house in Berkeley) my roommates yesterday were worried about Slate Star Codex. Their worries also apply to the Effective Altruism Forum, so I'll extend them.
The Problem:
Lesswrong was for many years the gravitational center for young rationalists worldwide, and it permits posting by new users, so good new ideas had a strong incentive to emerge.
With the rise of Slate Star Codex, the incentive for new users to post content on Lesswrong went down. Posting at Slate Star Codex is not open, so potentially great bloggers are not incentivized to come up with their ideas, but only to comment on the ones there.
The Effective Altruism forum doesn't have that particular problem. It is however more constrained in terms of what can be posted there. It is after all supposed to be about Effective Altruism.
We thus have three different strong attractors for the large community of people who enjoy reading blog posts online and are nearby in idea space.
Possible Solutions:
(EDIT: By possible solutions I merely mean to say "these are some bad solutions I came up with in 5 minutes, and the reason I'm posting them here is because if I post bad solutions, other people will be incentivized to post better solutions)
If Slate Star Codex became an open blog like Lesswrong, more people would consider transitioning from passive lurkers to actual posters.
If the Effective Altruism Forum got as many readers as Lesswrong, there could be two gravity centers at the same time.
If the moderation and self selection of Main was changed into something that attracts those who have been on LW for a long time, and discussion was changed to something like Newcomers discussion, LW could go back to being the main space, with a two tier system (maybe one modulated by karma as well).
The Past:
In the past there was Overcoming Bias, and Lesswrong in part became a stronger attractor because it was more open. Eventually lesswrongers migrated from Main to Discussion, and from there to Slate Star Codex, 80k blog, Effective Altruism forum, back to Overcoming Bias, and Wait But Why.
It is possible that Lesswrong had simply exerted it's capacity.
It is possible that a new higher tier league was needed to keep post quality high.
A Suggestion:
I suggest two things should be preserved:
Interesting content being created by those with more experience and knowledge who have interacted in this memespace for longer (part of why Slate Star Codex is powerful), and
The opportunity (and total absence of trivial inconveniences) for new people to try creating their own new posts.
If these two properties are kept, there is a lot of value to be gained by everyone.
The Status Quo:
I feel like we are living in a very suboptimal blogosphere. On LW, Discussion is more read than Main, which means what is being promoted to Main is not attractive to the people who are actually reading Lesswrong. The top tier quality for actually read posting is dominated by one individual (a great one, but still), disincentivizing high quality posts by other high quality people. The EA Forum has high quality posts that go unread because it isn't the center of attention.