First - upvoted, completely agree.

I think "insular" is a bad phrasing, though. It implies "doesn't listen to outside sources." The issue is more-so that the sequences are VERY prominent, and NOTHING else approaches that prominence. The wiki could ostensibly aspire to that goal, but in it's current state comes no where close.

It's not that the community is closed off to new or external ideas, it's that the community has this very prominent stone tablet of the Sequences - a very prominent and largely STATIC piece of content. The solution seems obvious - we simply need to bring the other material up in to prominence (as a number of people have suggested)

You seem to grasp the ideas here, I'm just trying to highlight the linguistic issue with your original phrasing, since a lot of people seem to be objecting that we're NOT insular. Because... we're not. We just have this big stone tablet that takes up a lot of the sky line and draws attention away from the non-insular parts of the community :)