Are there some specific concepts that come readily to mind? Maybe we could experiment with making much more substantial, useful wiki pages, riddled with quotations / excerpts from LW and elsewhere. The current standard size and tone of the wiki pages could be preserved -- as the lead sections for much longer articles.
(Broadly) wikipedian style is also useful for keeping articles organized and concise because of the section structure. Sections make topic divisions obvious, and 'See more' links can be included at the beginning of each section for more details.
We needn't be bashful about copy-pasting large chunks of the Sequences where it's useful to do so, and at the same time the more transparent structure of the wiki, and our ability to leave anything out that isn't absolutely essential, would let us piece together more to-the-point presentations. The wiki would then become our go-to resource for quick but thorough introductions to concepts, and would include links to the relevant Sequence posts (and primary literature, etc.) for people who want more examples and poetry. (Both of which can be immensely important.)
For a long time, Eliezer has been telling me I should write more like he does. I've mostly resisted, preferring instead to write like this:
At the recent Effective Altruism Summit I tried to figure out which personal features predicted writing style preference.
One hypothesis was that people who read lots of fiction (like Eliezer) will tend to prefer Eliezer's story-like style, while those who read almost exclusively non-fiction (like me) will tend to prefer my "just gimme the facts" style. This hypothesis didn't hold up well on my non-scientific survey of ~10 LW-reading effective altruists.
Another hypothesis was that most people would prefer Eliezer's more exciting posts, while people trained in the sciences or analytic philosophy (which insist on clear organization, definitions, references to related work, etc.) would prefer my posts. This hypothesis fared a bit better, but not by much.
Another hypothesis was that people who had acquired an epiphany addiction would prefer Eliezer's style, whereas those who just want to learn everything efficiently would prefer my style. But I didn't test this.
Another hypothesis that occurs to me is that people with short attention spans could prefer my more skimmable style. But I haven't tested this.
Perhaps the community would like to propose some hypotheses, and test them with LW polling?